Sam Vosburgh, 60, nicknamed Chewbacca, says he rarely wears a shirt because he “runs hot.” “It's crazy, this is overwhelming I never expected this, I just went to watch the ballgame with my grandkids and my son in-law and all the sudden all this. It's overwhelming, it's beyond.” He was shocked to find out he had gone viral, because the Vosburgh said he goes to a lot of games and is almost always shirtless.