Rafael Betancourt doesn’t believe his right groin injury is serious. There’s no pain, just weakness. But the reality is that it has been bothering him for a month, so a stint on the disabled list remains a distinct possibility. He will undergo an MRI on Wednesday. He talked with assistant general manager Bill Geivett for several minutes following Tuesday’s game.

Betancourt exited Tuesday in the 10th inning — the Rockies won on Wilin Rosario’s walkoff single — with a tight right groin after throwing two pitches in the dirt. Spiking a slider is one thing, but Betancourt admitted that he’s never bounced a fastball that far in front of the plate.

“It was feeling weird warming up. And I always push off that leg. I bounced those first two pitches, it felt weak and was getting tight. It’s hard for me to come out of the game, but it was the right move in that situation. I think it will be fine,” Betancourt said.

But when asked directly about going on the DL, he wavered slightly.

“We will see what will come from tomorrow. We have Thursday off, and I hope it will be fine if I don’t pitch those two days. If it was more serious I would tell you. If it was really bad I would tell you. But it’s getting tight every time, and it’s not easy to pitch like that,” Betancourt said.