LAWRENCE, Kan. -- Kansas says backup forward Thomas Robinson will miss the next two weeks after surgery on his right knee to repair a meniscus tear.

Coach Bill Self said Robinson, a 6-foot-9 sophomore, injured the knee against Missouri on Monday night. Robinson has been averaging 8.9 points and 6.4 rebounds, and is 20 for 25 from the field in his last four games. He missed the Jayhawks' game at Colorado tending to the funeral for his mother, Lisa Robinson, who died unexpectedly on Jan. 21.

"Thomas has a great attitude," Self said. "He's very disappointed, but has strong throughout this. We're disappointed for him for a lot of reasons. One is he is playing so well as of late. We would rather have him healthy and in rhythm going into the postseason than waiting and doing the surgery later on."

Self also said freshman guard Josh Selby probably will not play Saturday against Iowa State. Selby has missed two games with a stress reaction in his right ankle.