Thunder's Serge Ibaka left Game 6 vs. Clippers with left calf injury

Midway through the third quarter of Thursday night's Game 6 battle between the Los Angles Clippers and Oklahoma City Thunder, the Thunder lost one of their best soldiers.

Serge Ibaka grabbed his left leg on the court and, on the next timeout, could be seen pointing to the same area to someone on the bench. Ibaka then limped to the locker room and didn't return. 

ESPN's sideline analyst revealed that the injury is to Ibaka's left calf.

It is unclear when, exactly, Ibaka may have been injured, as it didn't appear to be a contact injury.

The Thunder, led by MVP Kevin Durant, were able to come from behind and eliminate the Clippers in Game 6 without their best frontcourt defender. They'll need him against the Spurs, though, that's for sure.