DALLAS (105.3 THE FAN) — Mavericks forward Caron Butler underwent surgery today to repair a ruptured right patellar tendon.  The surgery was performed by team physician Dr. T.O. Souryal at Texas Sports Medicine.  He is expected to miss the remainder of the season.

His absence will be quite a blow for Dallas, which was second in the Western Conference at 25-8 going into a game against Portland on Tuesday night.

Butler was Dallas’ third-leading scorer, averaging 14 points and 4.1 rebounds in almost 30 minutes per game. He was an inside-out force the Mavs relied on to draw defenses from leading scorer Dirk Nowitzki.

It could be a costly injury for Butler because he will become a free agent this summer.

In 29 games this season, Butler averaged 15.0 points, 4.1 rebounds and 1.6 assists and 29.9 minutes.