Kay (0-1) allowed four earned runs on six hits while striking out three over 3.1 innings of work in a loss to the Royals on Thursday.
The lefty drew this start on short notice, as the Blue Jays are dealing with a multitude of injuries to their rotation, but he didn't make much of a case to hold onto a spot. He's not currently scheduled for another start, though Toronto's uncertain rotation situation could mean he gets another shot next week against the Red Sox.