Portland Trail Blazers forward Jeff Pendergraph will undergo surgery in the coming days after an MRI today revealed a torn anterior cruciate ligament (ACL) in his right knee, it was announced by General Manager Rich Cho.

A timetable for his return to the court will be determined upon completion of the procedure.

“Jeff has been playing well and has been a big part of the team, so this is an unfortunate setback,” said Cho. “With his work ethic and determination, we know he’ll work hard in his rehabilitation to return to the court.”

The injury occurred at the 10:48 mark of the second quarter in Thursday’s preseason game at Utah.

Pendergraph, 23, averaged 2.7 points and 2.5 rebounds in 39 games (four starts) as a rookie in 2009-10 with the Trail Blazers after being acquired from Sacramento in a draft day trade on June 25, 2009. The Arizona State product was the 31st overall pick in the second round of the 2009 NBA Draft.