Speaking publicly for the first time since he was injured against New Orleans on Feb. 8, Jefferson says he is on track to be ready for the start of next season.
The Timberwolves center is still on crutches after a setback with some cartilage in the knee, but Jefferson says he has no doubt he will return to 100 percent health.
That's good news for a team that has lost 10 consecutive games and is 1-12 without Jefferson in the lineup.
Jefferson was averaging 23.1 points and 11.0 rebounds this season for the Timberwolves.
OBITUARY: Kennedy McIntosh , who played four years in the NBA with the Chicago Bulls and the Seattle SuperSonics, has died. He was 60.
McIntosh died Friday of a stroke at UCLA-Santa Monical Hospital, said niece Dara McIntosh.
Born in Detroit, McIntosh attended Eastern Michigan University from 1967-71 where he remains the school's career leader with 2,219 points and 1,426 rebounds.
His No. 54 jersey was retired in January 2006.
He was selected by the Chicago Bulls in the first round of the 1971 draft.
He played with the Bulls for one season before moving on to the SuperSonics.