The Warriors are returning from a key seven-game road trip on a sour note having lost five out of seven on the trip.
Former Stanford Cardinal, Brook Lopez had 26 points and 10 rebounds, and made two made free throws with 3.3 seconds left as the New Jersey Nets beat Golden State 94-90 on Wednesday night for their first three-game winning streak in two years.
David Lee had 17 points and 10 rebounds for the Warriors.
Monta Ellis scored 16 points on 7-for-22 shooting, Stephen Curry finished with 15 and Reggie Williams scored 10 off the bench.
Former Warrior Anthony Morrow added 22 points for the Nets, who were without All-Star point guard Deron Williams.
Sasha Vujacic, who entered the game averaging 8.9 points on 39.7 percent shooting, was 7 of 16 from the field for 16 points, and Kris Humphries chipped in with 11.
The Warriors host Orlando in Oakland on Friday.