By Andrew McCarty Late Friday night, fans watching the latest NASCAR Xfinity race at Martinsville Speedway were treated to a little more than they bargained for. Following the thrilling race, two drivers decided to settle their difference off the track rather than on it. A post-race melee sparked after Ty Gibbs and Sam Mayer had a little trouble with each other on the track. In a video, Gibbs can be seen wearing his helmet, while Mayer is not. When Mayer pushed him, Gibbs threw a punch and they came together in a melee as others tried to break it up. Check it out. Following the race, Gibbs att…