Washington Wizards forward Antawn Jamison will be sidelined three-to-six weeks because of a sprained left knee.

Jamison, 30, sustained the injury in a collision with teammate DeShawn Stevenson during the first quarter of Tuesday's 104-99 victory over the Detroit Pistons.

Antawn Jamison will miss 3-6 weeks.
(Winslow Townson/Associated Press)

He sat out Wednesday's 119-109 loss to the Toronto Raptors.

"I was really starting to get in a good groove, so it's frustrating that I will have to miss some time," Jamison said.

Jamison won't need surgery on the knee, which has troubled him since he hyperextended it early in a 115-110 overtime win over the Boston Celtics on Jan. 20.

Jamison is averaging 19.2 points, 7.9 rebounds, 1.8 assists and 38.4 minutes in 44 starts this season, his ninth in the NBA.

The former all-star has averaged 19.3 points, 7.6 rebounds, 1.7 assists and 36.3 minutes in 612 NBA appearances (505 starts) with the Golden State Warriors, Dallas Mavericks and Wizards.

Jamison, named NCAA player of the year in 1998, was drafted fourth overall by Toronto, which promptly traded his draft rights to Golden State for the rights to North Carolina teammate Vince Carter and cash considerations.

With files from the Associated Press