Wilk performed well in his Major League debut -- giving up two hits and one unearned run in 3 2/3 innings against the Boston Red Sox on Thursday. But with the left-handed Purcey coming over, the Tigers needed to move someone from the left-heavy bullpen.
Leyland said he has been impressed with the 23-year-old Wilk, but that didn't have much to do with his Major League debut.
"He had a nice outing," Leyland said. "My impressions are good about him, because I liked him in Spring Training, where I saw him quite a bit. My impressions are good, but that fact that he got by a few innings at the Major League level in a regular game is just what it is."
In Toledo this season, Wilk is 3-4 with a 3.86 ERA in eight starts with the Mud Hens.