Australian NBA star Andrew Bogut could miss up to six games after suffering a setback with his ankle injury.
Bogut, who suffered a broken ankle while playing for Milwaukee in January, will sit out for seven-to-ten days according to his club, Golden State.
That instantly rules the Boomers big man out of Friday's game against the Los Angeles Lakers, and the following two games against Denver and Atlanta.
It could also force him out of the three-game road trip to Minnesota, Oklahoma City and Dallas the following weekend.
Bogut missed the Warriors' entire pre-season schedule while recovering but was a surprise starter for the team's season-opening clash with Phoenix on October 31.
He's played in four of the Warriors' five games to start the season, averaging just 18 minutes a game on a severely reduced workload.
"He doesn't feel like he's 100 per cent ... and he's clearly not," Warriors coach Mark Jackson said.