New Orleans Pelicans coach Monty Williams said all medical tests on power forward Anthony Davis came back negative after he experienced what the team said was a chest contusion during Friday night’s home game against the Cleveland Cavaliers.

“He had a number of tests done at a hospital,” Williams said after Saturday morning’s practice. “He stayed overnight, and just got released. Everything came back negative.”

Davis wasn’t at Saturday’s practice.

Williams said Davis, who is in the NBA’s top 10 in five statistical categories, is questionable for Sunday’s game against the Golden State Warriors at Smoothie King Center.

Davis left Friday’s game at the 5 minute, 30 second mark of first quarter, wincing and with his hand on his chest. But game tape seems to indicate that the injury occurred at about the 5:50 mark when Cleveland forward Tristan Thompson was bringing the ball up the left sideline on a fast break. He and Davis appeared to bump briefly.

Williams said the Pelicans haven’t been able to find when the injury took place.

“It’s one of those freak deals,” he said. “We don’t know. We were looking for a hit more than a movement. It happens in the game. You’re moving around and stuff happens. We tried to find it on film and nobody’s been able to find it.”

Williams said he didn’t know the exact nature of the tests, but he was sure there was an MRI to make sure there wasn’t a cracked rib or a torn cartilage.

Davis’ availability, he said, depends largely on how painful the injury would be.

“We’ve just got to get him as comfortable as we think is good for him,” Williams said. “We’ll be able to assess more (Sunday) once he gets up and we see how he feels.”

Williams said Davis told him he couldn’t breathe when he came to the bench. Williams said he didn’t know if a test was conducted to determine Davis’ ability to breathe.

“I know he had an MRI, a CAT scan, X-rays,” Williams said. “I don’t know about any breathing measurements or anything like that.”

When he left the game, Davis scored eight points, making all four of his field-goal attempts but missing both free throws, and had one rebound.