Inside Groove: Racing with an attitude
Sometimes there's even more pressure that comes along with being a husband, as Travis Mack learned early Wednesday morning.
According to his Twitter account, Mack, who heads into his second season as Earnhardt's car chief under crew chief Greg Ives, delivered his own baby girl at 3:15 a.m. in his home bathroom.
"My Wife is so strong," Mack tweeted.
Best wishes to both mom and daughter and a tip of the cap to Mack, for staying cool under pressure.