Mets LHP Steven Matz went for an MRI on his left elbow on Wednesday and will likely not be ready for Opening Day, manager Terry Collins told reporters.
Matz had thrown on Tuesday for the second-straight day, but still felt something in his elbow after the session, Collins added.
The 25-year-old Matz, who had surgery to remove a bone spur in September and has dealt with elbow and shoulder issues among others since underdoing Tommy John surgery in 2010, was to start Monday. Zack Wheeler got that start instead.
"It's worrisome that he continues to be injured off and on," Mets GM Sandy Alderson told reporters this past weekend. "That's the difficulty. We don't think it's serious. On the other hand, starting pitchers are relied on every five days. I'm not sure exactly where this is going to take us."