Boston Red Sox shortstop Yu Chang underwent successful surgery on his left hamate, the team announced Friday.
Chang is expected to miss six weeks after he left Boston's game against the Orioles on Monday in the middle of an at-bat in the seventh inning. To replace Chang on the roster, Boston called up Enmanuel Valdez, who has committed three errors in three games.
Boston will most miss Chang's glove at shortstop, where he ranks third among all shortstops in defensive runs saved behind only Javier Baez and Francisco Lindor, who have both won Gold Gloves.