Ackley has been throwing recently, took swings off a tee on Tuesday, and plans to swing again on Wednesday, Kuty reported.
When Ackley was placed on the disabled list, Yankees GM Brian Cashman estimated that he would miss 20-to-30 games.
Ackley was acquired by the Yankees on July 30 for prospects Ramon Flores and Jose Ramirez. In just two games with the Yankees, Ackely had yet to record a hit. He was hitting .215 with a .270 OBP with the Mariners before the trade.