Wilk, who filled injured Doug Fister's rotation slot Saturday, held his own with five innings of two-run ball before Prince Fielder's foul ball hit him in the dugout and knocked him out of the game as a precaution. The ball hit him in a muscular area of his shoulder, sparing him from more serious damage.
Wilk is scheduled to open the Tigers' upcoming homestand on Thursday against the Rangers in a rematch of last October's American League Championship Series.
"We figured at least two [starts]," manager Jim Leyland said. "I don't really know how it'll play out [from there]."
That depends on Fister's status, and he hasn't started throwing again yet.