The Blue Jays designated Jason Smith for assignment after the game against the Orioles on Monday night, freeing up a roster spot for rookie right-hander Jesse Litsch. Litsch will make his major league debut Tuesday in place of Roy Halladay, who is on the 15-day disabled list following an appendectomy last week. Litsch was 3-4 with a 5.06 ERA for Double-A New Hampshire.