Being a lines umpire has its challenges, from dealing with angry players after making close calls to stray serves coming your way—fast. One Wimbledon linesman became the center of attention during the opening round battle between Thanasi Kokkinakis and Juan Martin del Potro on Tuesday. 

First, he was nailed in the shoulder by a Del Potro serve, and later in the set, hit by a Kokkinakis serve. 

Del Potro would win the encounter over the young Australian, 6-3, 3-6, 7-6 (2), 6-4, and the lineman walked away unharmed to judge another day. 


—GRAND SLAM WEEK: Watch Wimbledon Primetime on Tennis Channel, and catch up on the other 2017 Grand Slams on Tennis Channel Plus
—Watch encores from the 2017 French Open and Australian Open on Tennis Channel Plus, including matches like the AO Final showdown between Serena & Venus Williams