Kurt Busch, 44, has missed ten races now as he continues his recovery. In his absence, Ty Gibbs has been brought in as a substitute driver at 23XI Racing.<br>Although he withdrew his medical waiver, thus forfeiting his position in the playoffs, the No. 45 Toyota remains in the owner's championship hunt. As a result, the team swapped car numbers and put Bubba Wallace in the No. 45 ...<a class='more' href='https://www.motorsport.com/nascar-cup/news/kurt-busch-hopeful-nascar-return-concussion/10375316/?utm_source=RSS&utm_medium=referral&utm_campaign=R SS-NASCAR&utm_term=News&utm_content=www'>Keep reading</a>

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