Kenny Tate hits the sled on Tuesday. (Jonathan Newton/The Washington Post)

At the time, Coach Randy Edsall declined to disclose the specific nature of the injury except to confirm it required surgery. Tate received a medial redshirt that cleared him to play this season.

The mystery surrounding the injury continued on Tuesday, when Tate spoke about his recovery, saying “I’m full go.”

But before that optimistic prognosis, Tate was asked if the injury was to his MCL.

“No,” he said.

Was it the ACL?

“No,” Tate said.

So, what was it?

“It was, like, I don’t know,” Tate said. “It was something. I really don’t even remember the surgery. I was just ready to get back and start. I didn’t even get into that medical stuff. It was just, ‘Get me on the field.’ ”

The two-time All-Met from DeMatha is among two players listed first on the preseason depth chart at outside linebacker. A 6 feet 4, 220 pounds, Tate last year moved to a hybrid position called Star that incorporates elements of linebacker and safety.

It remains unclear when Tate, an all-ACC safety as a junior, was injured. During a teleconference last year with reporters, Edsall said the injury was “something he had” and Tate did “take a hit” in a game.

“What I’ve seen in two days [of training camp] is I see a guy that’s moving very, very well and handling everything really well,” Edsall said of Tate following Tuesday’s practice. “In talking to him after each practice and asking him how he feels and talking to the trainers, we don’t see any issues there, and you watch him run around here, you don’t see any complications.”