Billy Oliver has dressed for every game this season, but his warm-ups have yet to come off.

Out of the 13 eligible players on the Penn State men's basketball roster, Oliver is the only one that hasn't seen the floor yet.

But he also hasn't seen a full practice either.

In the first practice of the preseason Oct. 17, Oliver took a shoulder to the head from a sprinting Andrew Jones and fell to the floor with a concussion. When he returned to practice Oct. 23, he made it halfway through practice before succumbing to a similar fate.

"I was going for a rebound and kind of got tangled up with Jeff [Brooks] and we both came down," Oliver, a freshman forward, said.

"My head hit the floor and that was the end of that."

It's not the first time in his basketball career Oliver has missed time because of a blow to the head.

While playing at the AAU level, he took an elbow to the face and heard a crack in his jaw. As he recalled watching a few of his teeth roll across the floor, he compared it to Sylvester Stallone's "Rocky" character getting his teeth knocked out.

Now, a month-and-a-half after the concussions, Oliver was suited up for practice Thursday and said he expected to return to contact today.

Rated as a two-star recruit out of Chatham, N.J. by Scout.com, Oliver did get to play with the Nittany Lions in a trip to Canada for four exhibition games Labor Day weekend. In addition to the games, Penn State was able to hold 10 practice sessions.

"Learning the plays, learning the sets and all that stuff was a huge part of the Canada trip," Oliver said. "When I come back, I won't have to worry about it. I can get right back into it. I don't have to sit out and try to learn everything."

Although nothing has been decided, Oliver said he has thought about the possibility of redshirting this season after missing so much time already -- and he doesn't think he'll be cleared to play in a game for another one to two weeks.

While he would take the redshirt if the coaches sat him down and asked him to, right now he wants to play.

"He's just showed a tremendous amount of persistence, he really wants to get out there and perform," senior forward Jamelle Cornley said. "And he's really just showed that he just wants to help the team no matter what it is."

Oliver is listed at 6-foot-8, but assistant coach Kurt Kanaskie said he has a good shot and can hit 3-pointers. But with Penn State's lack of size, Oliver will likely play more down low and be asked to contribute as a rebounder.

Senior guard Danny Morrissey said having to match up with Cornley in practice can be a problem for a younger guy like Oliver, but he complimented him on his basketball IQ and ability to rebound.

"He just does everything right," Morrissey said. "He's just a solid player. He's not gonna wow you with athleticism or anything like that, but he just is very smart."