Monteiro, who left Wednesday’s game with Orlando City after a red-card challenge by Orlando’s Sacha Kljestan, had an X-ray come back negative on his left ankle.
“It’s been very positive in terms of the results of the X-ray and MRI,” Curtin said. “They were negative. It’s an ankle sprain.”
Monteiro was not in the matchday 18 for Saturday’s game before it was postponed, and he is not expected to be in the squad on Sunday, but he did show some positive signs in his first day back in the training room.
“Ankle sprains are tricky because sometimes you bounce back and you have some adrenaline the next morning when you wake up and you think things are feeling great, but the next steps are sometimes difficult,” Curtin said.
“To see him today in the training room, I’ll just say some of the exercises he was doing were incredibly positive.” Curtin said. “He was changing direction. He was very dynamic in his movements and the ankle was responding really well. Sometimes ankles are eight weeks. Sometimes ankle sprains are worse than ankle breaks, and this is a situation where it’s an ankle sprain, but from his initial first day back off of the X-ray, he looks in a good way. Hopefully it’s not a serious one because you have seen how good he is.”
The Union are not expected to change their matchday squad from Saturday to Sunday due to injury issues to Monteiro and Ilsinho, who was not 100 percent during Friday’s training.
“(Ilsinho) is a guy I want on our bench 100 percent of the time, but it was just a situation where he wasn’t feeling totally right,” Curtin said. “So we decided to hold him out.”