The Jays selected Purcey with the 16th overall pick during the 2004 First-Year Player Draft, but he has progressed slowly over the past four seasons. Last year, the 6-foot-5 left-hander pitched for Double-A New Hampshire, posting a 3-5 record with a 5.37 in 11 starts.
An arm injury prematurely ended Purcey's season, but he rebounded with a strong showing in the Arizona Fall League with the Scottsdale Scorpions. The 25-year-old southpaw went 1-2 with a 1.23 ERA in six starts, in which he struck out 25, walked nine and allowed 13 hits over 22 innings.
Toronto claimed Haerther off waivers from the Cardinals on Sunday. Haerther, 24, spent most of '07 at Double-A, where he hit .289 with five homers and 28 RBIs in 37 games with Springfield. The Jays have 10 days to either trade, release or reassign Haerther, who could be an emergency callup next season.
"Our guys have liked his bat in the past, and [the move] just continues to give us Minor League depth," Jays general manager J.P. Ricciardi said about Haerther. "From a scouting standpoint, he was evaluated and liked, and from a depth situation, he could come up to the big leagues and help us."
Toronto's 40-man roster now has no vacant spots. The Blue Jays are still in the market for a backup catcher and pitching depth this offseason.
Jordan Bastian is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.