(CBS) Bulls guard Michael Carter-Williams will miss four to six weeks with a left knee bone bruise that he suffered in Monday’s road win against the Nets, the team said Tuesday.

Carter-Williams suffered the injury in the second quarter Monday while taking a hard fall on defense. An MRI revealed no ligament damage in his knee, the team said. Carter-Williams also suffered a sprained left wrist on the play.

Coming back at the four-week mark would mean Carter-Williams misses 14 games. Coming back at the six-week mark would have him missing 21 games.

Carter-Williams’ absence will likely lead to more minutes for reserve guard Isaiah Canaan in the backcourt.

Acquired in a trade with the Bucks a couple weeks ago that sent Tony Snell to Milwaukee, Carter-Williams was slotting into a reserve role as the first guard off the bench for the Bulls before his injury. He averaged 4.0 points, 3.0 rebounds and 2.7 assists in 15.0 minutes across the first three games of the season.

Carter-Williams entered the year with career averages of 14.5 points, 6.1 assists and 5.6 rebounds in three seasons.