Frasor could still possibly qualify for a redshirt if necessary, Williams said, reiterating his desire for his return this season.
"That's always a possibility [of Frasor redshirting], but that's not what we're hoping for," Williams said. "We want him back this year, no question."
As far as a timetable for when he might make a decision on the matter, Williams said that was "not in our minds right now."
Frasor has played in seven contests, but has not seen action since the Kentucky game. He was averaging 4.3 points in 17.4 minutes per game. He has 21 assists against just six turnovers.
"[Frasor] is very frustrated," Williams said. "Since he got hurt, he played two or three games. We got him off the bench, but we decided that being a little more cautious was the best thing to do. So we stopped it after that and shut it down.
"We're still talking to some people and doing some tests. I'm not trying to hide anything from anybody. For 13 days there I was extremely encouraged, because it felt good and I thought, ‘OK, we've weathered the storm.' I'm not as encouraged now, because he's having pain again.
"I'd like a second and third opinion, that's the way I look at it."
Quentin Thomas (stress fracture, left foot) has returned to practice in a limited capacity.
"[Thomas] did not practice, but he did go through yesterday's drills shooting," Williams said. "He was very excited doing the dummy fast break drills, and he was trying to be very cautious with it, and we're going to bring him back slowly."