The Red Sox have designated out of options infielder Pedro Ciriaco for assignment to clear a 25-man roster spot for the returning Will Middlebrooks, according to Peter Abraham of the Boston Globe (on Twitter).
Ciriaco, 27, hit .216/.293/.353 in 58 plate appearances for the Red Sox this season — a far cry from last season's line of .293/.315/.390 (in 272 plate appearances). The Red Sox have used him all over the diamond, as he's seen at least three innings at every position aside from catcher since signing a minor league deal prior to the 2012 season. As Abraham notes, there's a decent chance that Ciriaco could clear waivers and be outrighted to Triple-A.