The White Sox signed left-handed pitcher Alan Embree to a minor league contract on Monday and assigned him to Triple-A Charlotte. Embree, who did not appear in a game with Boston this season, was designated for assignment on May 1.
He pitched parts of 18 season in the majors. He pitched for the White Sox in 2001. The veteran left-hander could challenge for a position in the bullpen, especially if Matt Thornton is moved up to closer.