Red Sox manager John Farrell has revealed that outfielder Alex Hassan has a stress fracture in his foot, and will miss the start of spring training (via Nick Cafardo).

Hassan, 24, has yet to see action with the Red Sox, but was added to the 40-man roster in November to protect him from the Rule 5 draft. Hassan has consistently shown the ability to get on base, holding a career .391 OBP in four seasons in Boston's farm system, but so far that's the only dimension to his game. He lacks significant power, is an unimpressive defender, and has only 16 stolen bases to his name.

Still, Hassan is depth at a position that may need it. With Ryan Kalish out for the foreseeable future, Hassan is the only available outfielder on the 40-man after Jacoby Ellsbury, Shane Victorino, Jonny Gomes, and Daniel Nava. With all four of those players expected to have a significant role for the team, the Sox could find themselves stretched very thin with an injury to any of them.