Kurt Busch stands on pit road.
James Gilbert | Getty Images

Kurt Busch to miss fourth straight race with concussion symptoms

23XI Racing indicated Wednesday that Kurt Busch will sit out for the fourth consecutive weekend, missing this weekend’s NASCAR Cup Series event at Richmond Raceway.

Busch has been sidelined the last three Cup Series events as concussion symptoms lingered after a crash during qualifying at Pocono Raceway on July 23. His 23XI team indicated that the 44-year-old veteran had not received medical clearance to drive the No. 45 Toyota in Sunday’s Federated Auto Parts 400 (3 p.m. ET, USA, NBC Sports App, MRN, SiriusXM).

Xfinity Series regular Ty Gibbs will fill in again for Busch in the No. 45 Camry. He stepped in for the last three races, recording a best finish of 10th last weekend at Michigan International Speedway. Those starts marked the first Cup Series efforts for Gibbs, the 19-year-old grandson of Coach Joe Gibbs.

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NASCAR officials indicated that Busch, a two-time Richmond winner, had received a medical waiver to retain his playoff eligibility, should all other criteria for making the postseason be met. Busch scored his lone Cup Series win of the season in May after a dominant performance at Kansas Speedway.

Busch is in his first year with the 23XI organization co-owned by NBA legend Michael Jordan and fellow driver Denny Hamlin. The veteran has 34 wins in 776 Cup Series starts and secured the series championship in 2004.