Barton will not start Sunday's game against the Trail Blazers and is considered questionable due to lower back tightness.

EDGE Analysis

Barton's back apparently tightened up during pregame warmups, and he was spotted heading back to the locker room in the minutes leading up to tip-off. The Nuggets quickly announced that Austin Rivers will start in Barton's place, and at this time it's unclear if Barton will be cleared to enter the game off the bench or if he'll be scratched altogether.