New York Mets manager Mickey Callaway told reporters that starting pitcher Steven Matz complained of left forearm tightness after the team's 25-4 loss against the Washington Nationals, according to Anthony DiComo of MLB.com.
"I think we need to get him checked out just to make sure that's not the case," Callaway said.
Matz downplayed any injury concerns, telling reporters he thought he was just going through a normal "dead-arm phase" and that he feels "healthy and good," adding that "it's hard to describe."
This article will be updated to provide more information on this story as it becomes available.