Center Andrew Bogut left the game early in the first quarter with lower back spasms. Bogut, who has a history of back issues, played in only 32 games last season after ankle surgery.
"There's no concern," Warriors coach Mark Jackson said. "He actually waved me off and wanted to stay in the ballgame, but we've got plenty of time to make sure he's healthy and whole and that's important closing out this preseason."
Now in his second season with Golden State after a trade from the Milwaukee Bucks, Bogut, who left three minutes into Friday's game, is set to become a free agent in July. He has said talks with the Warriors are ongoing and that he would be willing to include a clause in his contract regarding games played.
Bogut, the top pick in the 2005 draft, has averaged 12.2 points and 9.2 rebounds a game in his career, but his numbers have gone down in each of the past three seasons.
The Warriors won Friday's exhibition game 115-89 behind 25 points by Klay Thompson.
Information from The Associated Press was used in this report.