Bad news, but luckily it doesn’t sound too serious. Williams injured his non-throwing shoulder recently making a diving catch. He apparently played through the injury immediately after, but as a precaution the Yankees sent him to see the team doctors who recommended surgery. He is expected to make a full recovery by spring training.
Williams, who will turn 21 later on this month, was ranked as the No. 3 prospect in the Yankees system by BBD. He hit .298/.346/.474 overall this season while splitting time at Low-A and High-A. High numbers were down slightly from a year ago, but he was hitting with a bit more power this season after putting on 25 pounds during the offseason.