Aurelien is now walking around in a boot, which means he will be sidelined for at least the next week. (Photo courtesy of MLS)

Red Bulls midfielder Daniel Royer, who participated in full training with the team Tuesday, could very well play for the team in the next two games.

The Red Bulls host the Philadelphia Union at Red Bull Arena Sunday and play at Sporting Kansas City in the Lamar Hunt/U.S. Open Cup final next Wednesday.

“We will see where he’s at on the weekend and we’ll see where he’s at for the Open Cup,” head coach Jesse Marsch told reporters Tuesday.

Center back Aurelien Collin, who did not practice, and is walking in a boot these days.

Collin is expected to start training early next week.

“We’re hopeful we’re on top of it,” Marsch said.

Defender Michael Amir Murillo, who returned from Panamanian World Cup qualifiers with an ankle injury, did not practice and is expected to start training soon.