Coming out of a timeout, Warriors center Kevon Looney had a free dunk on an inbounds play with 1:56 left in the third quarter.

The Mavericks, believing they had possession, were lined up on their offensive end of the court, which Cuban attributed to an officiating error.

In a pool report afterward, crew chief Sean Wright disputed Cuban's account, saying the referees originally signaled it was Golden State's ball.

Mavericks coach Jason Kidd contended that official Michael Smith must have thought it was Dallas' ball because he was positioned on the same end of the floor as the Mavs coming out of the timeout.

Warriors coach Steve Kerr said it initially confused him when he saw the Mavericks lined up on the other end of the court, even though he was certain his team had possession of the ball.

After commissioner Adam Silver receives the protest, the Warriors will be notified and each team will have five days to file evidence to support its case.