"I'll be the happiest guy in Detroit if [team officials] call today and say he's healthy and no problems," manager Jim Leyland said Sunday morning. "That's all I'm interested in right now."
Zumaya struggled in his inning of work, walking the first two batters he faced and giving up an unearned run before retiring three straight batters to contain the damage. He threw 33 pitches to get out of the jam, a good test to stretch out his arm.
To be fair, Zumaya didn't completely have his health. Leyland cited organizational reports that Zumaya was under the weather. His arm, however, reportedly appeared fine, firing fastballs at 94-97 mph.
"Nobody knows for sure if the velocity will ever be the same," Leyland said. "But I saw it at 98 in one [Minor League] game, so some of it's there. But if Zumaya's at 94, 95, 97, [and] if he's got his good curveball, he'll be fine."
Assuming Zumaya's arm feels fine, he'll likely throw at least once more at Lakeland before team officials decide what to do next. He'll make outings on back-to-back days at Triple-A Toledo or Double-A Erie before the Tigers decide whether to call him up.
Also on the injury front, Leyland said Jeremy Bonderman will throw off a mound on Monday in Lakeland. It'll be his first mound session since he was shut down after a rough Spring Training outing on March 29.
Jason Beck is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.