NASCAR informed the Joe Gibbs Racing driver on Tuesday morning that he must begin the process by the end of the week.<br>Hamlin tweeted a clip from Family Guy that mocks Asian drivers, intercut with footage from the final lap at Talladega when Kyle Larson collided with Kurt Busch -- who drives for Hamlin's 23XI Racing team. Busch's teammate Bubba Wallace was also collected in the crash.<br>Larson ...<a class='more' href='https://www.motorsport.com/nascar-cup/news/hamlin-sensitivity-training-larson-tweet/10242548/?utm_source=RSS&utm_medium=referral&utm_campaign=R SS-NASCAR&utm_term=News&utm_content=www'>Keep reading</a>

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