Jannik Sinner's Sleeve at Wimbledon Explained by New Arm Injury originally appeared on Athlon Sports. Jannik Sinner has a new look to his all-white attire at Wimbledon, but it is not a welcome addition. Fans are noticing Sinner is doing his best Allen Iverson impression by wearing a white sleeve on his arm at the All England Club.

Dimitrov was playing fantastic tennis, running Sinner around the court and delivering booming serves. Dimitrov won the first set 6-3 and survived a hard-charging comeback attempt from the Italian in the second to take the set 7-5 and put the world No. 1 in a desperate position.

No. 1 Janik Sinner advanced to the Wimbledon quarterfinals Monday after his opponent, Grigor Dimitrov, retired injured while he was leading their fourth-round match two sets to love.