Learn more about the MLB Authentication Program, the most comprehensive league-wide memorabilia authentication initiative in professional sports. Bid on autographed White Sox jerseys, baseballs, bats ...

The White Sox will be the beneficiary of the untapped potential of MLB.com's No. 11 international prospect. The club on Wednesday announced it had signed the 17-year-old ... must be registered with ...

On Saturday afternoon, the Chicago White Sox announced that they had signed Karinchak ... Sox had the worst record in MLB history, and their bullpen ranked 27th in baseball with a team ERA of ...