Tuesday night against the Marlins, he allowed six runs and 10 hits in five innings, as the Mets lost, 9-3, at Citi Field.
DeGrom has thrown 181 innings this season, a year after pitching 140 innings during his rookie season.
“He’s pretty frustrated right now,” Terry Collins said after the game. "He might be tired. Is it true? I don't know, but it sure looks like it is."
DeGrom allowed four straight hits to begin the fourth inning Tuesday and surrendered three consecutive run-scoring plays in the fifth inning, which put the Mets in a 6-1 hole.
"I've had bad starts before," deGrom said. "It's about how you react after them, so I'd like to get back out there."
Collins said he will consider skipping deGrom's spot in the rotation to give him added rest as the Mets near a playoff berth.
"That decision's up to them," deGrom said. "I'd like to keep pitching, but it's out of my control."
Matthew Cerrone, MetsBlog.com
The Marlins have seen deGrom a bunch this season, and it looked like they knew his game plan well, adjusted and attacked. So, tip your cap to that. However, at the same time, he keeps hitting a wall late in games. He's got gas at the start, but he isn't very sharp with his off-speed pitches starting around the third inning. I like that his fastball is still strong. It's not the issue, which is encouraging. Instead, he's off with his location and command, which usually means a change in mechanics or arm speed, all because he's probably a bit weak. It happens to every pitcher. It's OK that it's happening to deGrom. It's not permanent. The key here is that they get him rest when they can so it doesn't extend in to and get worse in October.