Russell Westbrook is recovering well from knee surgery, but the explosive guard admitted that he doesn't know when he will be ready to make his NBA comeback for the Oklahoma City Thunder.

Westbrook, who underwent arthroscopic knee surgery on Dec. 27, was initially ruled out for four to six weeks, but the Thunder later announced that the All-Star point guard could be out until after the All-Star break.

Westbrook is now off his crutches, but when asked about a timetable for his return, the former UCLA standout declined to give a definite answer, saying that he is approaching his recovery on a day-to-day basis.

"I'm not sure, man. I just wake up and try to get on the floor as quick as possible, man. I just try to do what's best for my body and just take it day by day," Westbrook said in an Associated Press report via ESPN.

Last month's procedure was the third knee surgery in eight months for Westbrook. The 25-year-old point guard tore the lateral meniscus in his right during Game 2 of their first round playoffs showdown with the Houston Rockets.

Westbrook underwent surgery on April 27 to repair the torn meniscus, which was followed by another procedure on Oct. 1. Initial projection suggested that Westbrook could miss the Thunder's first 22 games of the season, but he made a surprising return in their third game this season.

The six-year guard went on a tear, averaging 21.3 points to go along with 7.0 assists and 6.0 rebounds in 25 games this season. He was showing no signs of post-surgery effects based on his performance, but he admitted that his knee kept on swelling and swelling.

"I mean, it was nothing to play through. I wasn't in no pain. I was just playing basketball, going out there trying to help my team win and competing. And my knee just kept swelling and swelling. So we had to do what's best," Westbrook said.

And when asked if there are doubts on his mind as to whether he will be as explosive as before, the six-year veteran confidently said: "Never. Never a doubt. Never a doubt."

Reggie Jackson took the starting point guard role and is doing well, averaging 18.5 points in their last two games, which includes a 27-point explosion in their 119-96 win over the Boston Celtics on Sunday.