The Sox now have 13 pitchers and indicated they will make a corresponding move before Sunday night's game. With Alexei Ramirez coping with a sore left wrist that relegated him to the bench Saturday night, the Sox will need a dependable backup shortstop.
At Double-A Birmingham, Tyler Saladino is batting .251 but impressed manager Robin Ventura in spring training.
One intriguing possibility is 2005 World Series hero Geoff Blum, who was designated for assignment by Arizona on July 20. Blum, 39, is a switch hitter who can play several infield positions.
Blum is a lifetime .250 hitter who batted .194 in 17 games with the Diamondbacks.