Kyle Busch and Kevin Harvick nearly came together on pit road during a fast and furious practice for All-Star Race qualifying.

Alex Bowman rose to the top of the board at Kansas and moments later hit the wall at Kansas.

Kyle Larson goes for a spin in final Monster Energy NASCAR Cup Series practice at Kansas and makes slight contact with Martin Truex Jr.

Drivers draft together in the final Monster Energy NASCAR Cup Series practice at Talladega.

Teams work on drafting with the new rules package in the first practice for the Monster Energy NASCAR Cup Series at Talladega before Sunday's race.

The racing got intense during Monster Energy NASCAR Cup Series final practice for Sunday's O'Reilly Auto Parts 500 at Texas Motor Speedway.

Corey LaJoie hits the wall during Monster Energy NASCAR Cup Series practice at Martinsville Speedway, leaving significant damage on the No. 32 Ford.

Michael McDowell looks back on the physical altercation with Daniel Suarez during Friday's qualifying; the two met one-on-one and with NASCAR before practice Saturday

Daniel Suarez and Michael McDowell met one-on-one after their physical altercation during qualifying; despite his unhappiness with McDowell, Suarez said he won't try to wreck the No. 34 Sunday

Ryan Blaney shared his thoughts on the rules package for Phoenix after leading Monster Energy Series opening practice at ISM Raceway.

Final practice at Las Vegas saw plenty of Monster Energy NASCAR Cup Series work on drafting with the new rules package before Sunday's race.

Kyle Busch backs his No. 18 Joe Gibbs Racing Toyota into the outside wall in Turn 2 during final practice at Atlanta Motor Speedway.

See the in-car view as Daniel Suarez's comes on to pit road and goes for a spin in his new ride during Advance Auto Parts Clash practice.

Just over half an hour into 'The Clash' practice and contact between Chase Elliott and Ryan Newman sets off a wreck that captures Kevin Harvick and Denny Hamlin as well.

A hard hit for Paul Menard in the closing moments of final practice will bring out the backup car for the No. 21 Wood Brothers Racing Ford team.

During final practice for the Monster Energy NASCAR Cup Series, Ricky Stenhouse Jr.'s No. 17 Roush Fenway Racing Ford catches fire on pit road.

Denny Hamlin and Chase Elliott work together to practice restarts at ISM Raceway. As part of the track's reconfiguration, the start/finish line was moved.

An early practice setback at Martinsville for Aric Almirola sends the No. 10 car to the garage.

Kyle Larson's quest to advance in the NASCAR Playoffs gets tougher after he wrecks in practice at Kansas Speedway.

Brad Keselowski was leading final Monster Energy NASCAR Cup Series practice when he hit the wall after coming out of Turn 17

Prior to final practice in the Monster Energy NASCAR Cup Series, NASCAR moved the tire wall in Turn 12 back a bit after it was involved in several practice accidents.

Watch as Erik Jones barrels through the tire wall on the backstretch chicane at the Charlotte road course.

Watch as Bubba Wallace carries too much speed and blows through the tire barrier on the backstretch chicane.

A number of Monster Energy NASCAR Cup Series drivers found trouble during opening practice for the Bank of America Roval 400 on the Charlotte road course.

Jamie McMurray didn't even get the chance to take a lap at full speed before the No. 1 Chip Ganassi Racing Chevy blew an engine at Darlington.

Chase Elliott goes for a spin off of Turn 4 during final practice at Michigan International Speedway.

Where there was smoke, there was fire underneath Clint Bowyer's No. 14 Stewart-Haas Racing Ford during final practice at Watkins Glen.

Michael McDowell will be heading to a backup car for Sunday's Foxwoods Resort Casino 301 at New Hampshire after a wreck in final practice.

David Ragan slides the No. 38 Front Row Motorsports Ford into the wall during opening practice for the Monster Energy NASCAR Cup Series at New Hampshire.

Erik Jones' mullet has been all the talk after scoring his first career win at Daytona, but he had some bad news during practice at Kentucky Speedway.

Kyle Larson brushed the wall during Monster Energy NASCAR Cup Series final practice at Chicagoland, getting light damage on the No. 42 Chip Ganassi Racing Chevrolet.

A fair share of Monster Energy NASCAR Cup Series drivers had some trouble during a pair of practice sessions at Sonoma Raceway.

Listen to what Trevor Bayne learned while watching Matt Kenseth pilot the No. 6 Ford and what he hopes to gain getting back behind the wheel.

Ricky Stenhouse Jr. went for a spin in the No. 17 Roush Fenway Racing Ford in final practice for the Pocono 400 at Pocono Raceway.

Watch as Matt Kenseth turns his first laps inside of Monster Energy NASCAR Cup Series car of the 2018 season.

Watch as NASCAR Officials drill and saw the asphalt at Kansas Speedway to relive pressure caused by water under the race track.

Jamie McMurray describes what was going through his mind as he went airborne during the final practice at Talladega.

Jamie McMurray wrecks hard in final practice after a cut left-rear tire sends the driver of the No. 1 on a ride.

Take a look at what Ty Dillon sees unfold during a major wreck in the Monster Energy NASCAR Cup Series final practice.

Trevor Bayne discusses the recent news of Matt Kenseth coming on board to split time on the No. 6, and why he is focused on one thing only.

Kurt Busch smacked the wall late in final practice at Bristol Motor Speedway.

Kevin Harvick takes his No. 4 Ford into the wall and incurs serious damage after making contact.

AJ Allmendinger spins and tags the wall during opening Monster Energy NASCAR Cup Series practice for Sunday's Food City 500 at Bristol Motor Speedway.

Ricky Stenhouse Jr. smacks the wall at the exit of Turn 4 during Saturday morning Monster Energy Series practice at Texas Motor Speedway.

The No. 24 team must overcome early obstacles at Texas as Byron says the team is working on a motor issue during practice.

Watch as Ricky Stenhouse Jr. gets loose and wrecks in Monster Energy NASCAR Cup Series final practice at Martinsville Speedway.

Daniel Suarez incurs right-side damage on his No. 19 Toyota and will use a backup car in Sunday's Auto Club 400.

Ricky Stenhouse Jr. wrecks in Turns 3 at ISM Raceway on Friday and the No. 17 team will use a backup car for the duration of the weekend.

William Byron explains how the No. 24 team has worked to get his Axalta Camaro XL1 ready for his first Monster Energy Series race at Las Vegas Motor Speedway.

Breaking down the differences in approach and time between a six-person pit stop and a five-person pit stop in the Monster Energy Series.

NASCAR officials have given Monster Energy NASCAR Cup Series teams the option of purchasing one additional set of tires for Sunday’s season-ending Ford EcoBoost 400.

Championship 4 finalist Martin Truex Jr. gets into the wall during Saturday's first practice session at Homestead-Miami Speedway.

Playoff contender Brad Keselowski breaks down his strategy heading into Sunday's elimination race at Phoenix.

Take a lap around Talladega Superspeedway with Dale Earnhardt Jr. as he sports NBC's helmet camera throughout the Monster Energy NASCAR Cup Series weekend.

In a bizarre incident getting up to speed in opening Monster Energy Series practice, Jimmie Johnson ran over debris and cut a left-rear tire, sending him for a spin at Talladega.

Kyle Busch was called to the Monster Energy NASCAR Cup Series hauler during opening practice at Charlotte Motor Speedway.

Brad Keselowski made contact with the Turn 4 wall in opening Monster Energy NASCAR Cup Series practice on Friday at Charlotte Motor Speedway.

Dale Earnhardt Jr. hits the wall early in opening Monster Energy NASCAR Cup Series practice and the No. 88 team will go to a backup car.

Jimmie Johnson was called to the hauler after speeding on pit road during Saturday's early Monster Energy Series practice at Dover.

Contact with the wall early in opening practice at New Hampshire Motor Speedway leads to damage for the No. 24 Chevrolet of Chase Elliott.

Watch as Jimmie Johnson crashes in Monster Energy NASCAR Cup Series practice at New Hampshire Motor Speedway.

Kyle Busch has a tire go down in final practice that leads to the No. 18 go for a spin at Darlington Raceway

With Denny Hamlin on baby watch, 22-year-old Christopher Bell climbed into the No. 11 Joe Gibbs Racing Toyota to log a few practice laps at Michigan.

Hendrick Motorsports driver and seven-time champion Jimmie Johnson got loose and drilled the outside wall during final practice at Michigan, forcing the backup No. 48 Chevrolet out of the hauler.

Jimmie Johnson slides into the tire barrier out of turn 1 at Watkins Glen International

Several drivers had a tricky time at Watkins Glen

Dale Earnhardt Jr. explains why he and the No. 88 Hendrick Motorsports team might be willing to gamble this weekend.

Denny Hamlin causes significant damage to his No. 11 Toyota in Monster Energy Series practice at New Hampshire Motor Speedway.

Aric Almirola gives an update on his health and when he expects to be back behind the wheel in the Monster Energy NASCAR Cup Series.

Take a look at some of the early curb hops from Sonoma Raceway as drivers gear up for Sunday's race.

Erik Jones gets loose in Turn 11 during Monster Energy Series final practice at Sonoma Raceway and slams hard into the tire barrier.

Jimmie Johnson gets loose in Turn 4 and spins the No. 48 through the grass, damaging the front of the car in Saturday's practice at Michigan.

Ryan Reed is approved to drive the No. 6 Monster Energy Series Ford if Trevor Bayne needs to leave the track for the birth of his child. Reed made some practice laps in the car at Michigan International Speedway.

Landon Cassill gets loose and slams the wall late in Monster Energy NASCAR Cup Series practice at Michigan International Speedway

Kyle Larson goes for a spin in Monster Energy NASCAR Cup Series final practice at Pocono Raceway.

Darrell Wallace Jr. preps for his first Monster Energy NASCAR Cup Series race this weekend at Pocono Raceway. Watch as he turns his first laps in the No. 43 Ford.

Watch and listen as Dale Earnhardt Jr. has something break in his car while practicing at Pocono Raceway.

Erik Jones gets loose and spins out during Monster Energy NASCAR Cup Series practice at Dover International Speedway.

Brad Keselowski's patriotic No. 2 gets loose in Turn 4 during final practice at Charlotte Motor Speedway.

FOX broadcast takes a look at the option tires NASCAR has made available for the Monster Energy NASCAR All-Star Race and its implications

Denny Hamlin loses control and impacts the wall at Charlotte Motor Speedway

Watch as Erik Jones' No. 77 Toyota goes for a spin off of Turn 4 and tears up the grass in the Kansas Speedway infield.

Monster Energy NASCAR Cup Series points leader Kyle Larson hit the wall in final practice at Kansas Speedway and will have to go to a backup car.

Ricky Stenhouse Jr. brings out the caution during Saturday morning practice after making contact with the wall.

Kyle Larson, who is starting Sunday's race from the pole position, makes contact with the wall in the waning minutes of practice at Bristol Motor Speedway.

Following final practice on Saturday, Kurt Busch walks on the track to check Bristol Motor Speedway's temperature and grip.

Late in Friday's practice, Joey Logano hits the wall at Bristol Motor Speedway.

Watch as Trevor Bayne crashes in final practice, forcing his team to bring out a backup car.

Kasey Kahne's No. 5 Chevrolet suffers some damage from contact with the wall Saturday in final practice for the O'Reilly Auto Parts 500 at Texas Motor Speedway.

Kyle Busch's No. 18 Toyota had an accident in practice that resulted in right-rear damage, but the team will repair the damage to the car.

After a wreck in practice at Texas Motor Speedway, Kyle Busch takes his required ride to the infield care center for a checkup.

Erik Jones' No. 77 Toyota took a hard hit into the wall in practice that will force his team to bring out the backup car.

A practice wreck will force Chase Elliott and the No. 24 Hendrick Motorsports team to a backup car at Texas.

Daniel Suarez goes sideways during opening Monster Energy NASCAR Cup Series practice at Martinsville Speedway.

Watch Kevin Harvick hit the wall in Monster Energy NASCAR Cup Series practice at Auto Club Speedway.

Watch as David Ragan hits the wall in Auto Club 400 practice. The No. 38 will have to go to a backup car.

Kyle Busch's No. 18 Toyota spins across the track, billowing smoke and bringing out the red flag during final Monster Energy NASCAR Cup practice at Auto Club Speedway.

Chase Elliott's Hendrick Motorsports Chevrolet hit the wall during final practice Saturday at Auto Club Speedway, but the No. 24 team is hopeful of repairing the primary car rather than going to a backup for the Auto Club 400.

A spin in Friday's practice forced the No. 48 Hendrick Motorsports team of Jimmie Johnson to bring out the backup car.

An owl flies onto to the track at Auto Club Speedway and delays Monster Energy NASCAR Cup Series practice.

Ricky Stenhouse Jr. hits the wall during the second practice at Phoenix International Raceway.

Watch Daniel Suarez manage to avoid damage after spinning at Phoenix Raceway.

During Monster Energy NASCAR Cup Series final practice, Kyle Busch has a close call trying to make it on to pit road at Atlanta Motor Speedway.

Tony Stewart talks about finding out what works best for him as an owner after retiring from racing NASCAR in 2016.