The Yankees have designated left-hander Justin Thomas for assignment, according to Mark Feinsand of the New York Daily News (via Twitter). After the Red Sox removed Thomas from their 40-man roster in May, he was claimed by the Yankees and posted a 3.45 ERA, a 2.45 K/BB ratio and a 7.7 K/9 rate in 30 games (six of them starts) for Triple-A Scranton/Wilkes-Barre this season. Thomas also appeared in four Major League games for New York, allowing three runs in three innings of work.
In a corresponding move, David Aardsma has been activated from the 60-day disabled list and will take Thomas' place on the Yankees' 40-man roster. Aardsma hasn't pitched in the Majors since 2010 due to hip surgery during the 2010-11 offseason and Tommy John surgery last July. The Yankees also activated Brett Gardner from the 60-day DL today and designated Steve Pearce for assignment.