New York Yankees general manager Brian Cashman said Tuesday that second baseman Dustin Ackley could miss 20 to 30 days while recovering from a back injury, according to New York Newsday. Ackley saw just three at-bats in a Yankee uniform after being acquired from the Seattle Mariners before being placed on the disabled list Tuesday with a right Lumbar strain. The team is hopeful that Ackley will be able to provide depth at multiple positions upon his return. “I think it just gives [manager] Joe Girardi more flexibility from the bench,” Cashman told LoHud.com after acquiring Ackley. “Especially from the defensive side, with at the very least similar offensive production (compared to Garrett Jones) right now, with some upside as well as control years going forward if we so choose. It just gives us a little more flexibility, a little more youth as we move forward. Again, it’ll provide Joe a lot more flexibility and a better defensive profile.”