Zumaya will have exploratory surgery next Tuesday to determine what's wrong with his right elbow and will likely miss the rest of the season, MLB.com's Jason Beck writes.
Zumaya, who collapsed on the ground with an arm injury last June, made one outing in spring training before his elbow flared up. He's had multiple MRIs, noon of which have shown major structural damage, but he has had pain whenever he tried to throw.
The 26-year-old right-hander is eligible for free agency after the season, and Sports Illustrated's Jon Heyman wrote the Tigers "have decided this will be his last year in Detroit."
In the past, Zumaya has talked about retiring rather than going through rehab again.For more baseball news, rumors and analysis, follow @cbssportsmlb on Twitter or subscribe to the RSS feed.