Stephen Curry's knee injury suffered during Saturday's win over the Dallas Mavericks is a "concern" for Golden State Warriors coach Steve Kerr.

The reigning NBA champions had enough to close out the game, beating the Mavs 119-113 at Chase Center.

But Curry – who recorded 21 points, seven assists and six rebounds – was forced off in the third quarter.

Defending a drive, Curry was involved in a collision that instantly caused him obvious discomfort and prevented him from continuing.

The Warriors confirmed X-ray results came back negative, but more examinations are required to understand the full nature of the injury.

"Any time a guy's going to get an MRI there's a concern level, for sure," Kerr said. "So we'll just have to wait and see the results.

"This has happened many, many times over the years. So, fingers crossed he's OK."

Curry hurt the same knee only two days before against the Denver Nuggets, though Kerr was unsure if the two injuries had any form of relation.

If Curry does require a spell on the sidelines, Kerr and the Warriors can at least study their game from his last prolonged absence earlier this season when a shoulder injury forced him to miss 11 games.

"If he's out, then we move forward and we do have some games to look at, some game film to look at," Kerr added. "We'll be ready, regardless."

Curry's exit coincided with a significant drop-off for the Warriors, who went from 20 points up to having just a five-point lead with a little over 90 seconds left.

It is not the first time the Warriors have been unconvincing when trying to close a game out, with Draymond Green suggesting the players need to take more responsibility.

"When we get down the stretch, we stop doing the things that work," he said. "When the game is going down the stretch, it's hard for Steve [Kerr] to get a call in every time.

"You're under pressure, it's intense, you're in the game, you're not really focused on what's coming from the sidelines. We've got to do a better job closing down the stretch."

This victory took the Warriors to 27-26 for the season, leaving them seventh in the Western Conference.