Alexander Gustafsson Accidentally Kicks UFC Coach in the Jaw, Guy Has Iron Chin

While training this week for his May 28 light heavyweight bout against Glover Teixeira at UFC Fight Night 109 in Stockholm, contender Alexander Gustafsson accidentally drilled his coach, Andreas Michael, in the face with a spinning heel kick.

Luckily, Michael has a chin of steel.

The coach was barely fazed. He even laughed and encouraged a concerned Gustafsson to "keep going."                  

[Instagram]