AJ Puk injury update: A's top pitching prospect facing Tommy John surgery Unknown 00:05 According to FanRag Sports, Puk is dealing with an elbow issue, but the A's have yet to acknowledge he has any kind of injury at all. Share this Share on FacebookTweet on TwitterPlus on Google+ Related PostsMLB wrap: Mike Foltynewicz throws shutout in Braves' win over NationalsMookie Betts injury update: Red Sox' star placed on 10-day DL with abdominal strainStanley Cup Final 2018: On wrong side of 'The Save,' Golden Knights' Alex Tuch keeps a short memoryEngland vs Nigeria: TV channel, live stream, squad news & match previewNHL Rumor Roundup: Penguins facing another Phil Kessel trade conundrumEvgeny Kuznetsov injury update: Caps center to be 'game-time decision' for Game 3