Litsch fell to 0-2 with Las Vegas, giving up nine runs on 10 hits and three walks while lasting 4 2/3 innings. He struck out five. In addition to being winless, Litsch has a 14.34 ERA for Las Vegas.
"Physically, he's fine," Toronto manager John Farrell said. "His stuff is what we've seen when he was healthy here in Toronto."
Litsch, who has been on the disabled list since May 19 with a right shoulder impingement, was 4-3 with a 4.66 ERA in eight starts before he was injured.
"Right now, he would be on turn for next Friday, still with Las Vegas," Farrell said.