@sam.mayer21 speaks with @chellee_siewert and @jenlada4 on the Athletes Doing Good Podcast about being the youngest @nascar champion and the first to showcase custom, one-time only paint schemes featuring professional athletes organizations on his No.21 Chevrolet car! To listen to the full episode search ‘Athletes Doing Good’ on popular podcast channels! #AthletesDoingGood #Podcast #GMSRacing