Serge Ibaka out vs. Trail Blazers

PORTLAND, Ore. -- Oklahoma City forward Serge Ibaka missed the Thunder's game against the Portland Trail Blazers on Sunday night because of a chest contusion.

Ibaka was replaced in the starting lineup by Nick Collison.

Ibaka had not missed any games previously this season, and was averaging 14.3 points and 8.4 rebounds.

The 6-foot-10 Ibaka was injured in the third quarter of Oklahoma City's 116-101 victory over the Los Angeles Lakers on Friday night.