DALLAS -- Golden State Warriors forward Otto Porter Jr. left Game 3 of the Western Conference finals midway through the second quarter after suffering a left foot injury.

During a timeout in the third quarter, the Warriors announced he had foot soreness and would not return.

The short-handed Warriors managed without Porter. Stephen Curry scored 31 points and added 11 assists as Golden State posted a 109-100 victory to secure a 3-0 series lead over the Dallas Mavericks.

Porter sustained the injury when he landed after going up for a layup. Porter came up hobbling, and was fidgeting with his left foot at the next stoppage -- a pair of Dallas free throws. Porter tried to play through the pain, but called to be subbed out just a few moments later.

During the Warriors' subsequent timeout, Porter limped back to the locker room with trainers, where he received X-rays.

Porter missed Game 6 of the Western Conference semifinals with right foot soreness.