Rashad Evans was looking forward to competing this evening at UFC 170 against Daniel Cormier.

Unfortunately, Evans suffered a serious knee injury that forced him to withdraw from the bout. The former UFC light heavyweight champion had surgery recently, and is expected to be out for several months.

That doesn’t mean “Suga” won’t be an interested observer of the action that goes down from Las Vegas, as he offered up his thoughts on Cormier vs. Patrick Cummins and the main event between Ronda Rousey and Sara McMann.

Cummins signed with the UFC last week to replace Evans. He is a former training partner of Cormier’s, who is making his 205-pound debut.

“I think tonight could be the night for upsets,” Evans posted on Twitter. “DC vs. Cummins is interesting cuz they have trained 2gether and Cummins claims to gotten the better of DC. Which has DC upset he said that.”

The two were workout partners while Cormier was on his quest to become an Olympic champion. Cummins was a two-time All-American at Penn State University on the wrestling mat and is 4-0 in his MMA career.

As for Rousey vs. McMann, which is for the UFC female bantamweight title, Evans said, “Rousey has a opponent who is more physical than her with real skill.”

McMann, also unbeaten like Rousey, won the silver medal in wrestling at the Summer Olympics.

Evans was hoping to build off back-to-back victories over Dan Henderson and Chael Sonnen, and possibly position himself for another shot at the UFC light heavyweight title. A timetable for his return has yet to be announced by either the fighter or his management team.