Gary Payton II, a fan favorite beloved by his teammates, might have played his last game with the Warriors. Payton will become an unrestricted free agent on Monday, and his return to Golden State is in serious jeopardy, multiple NBA sources told NBC Sports Bay Area on Friday and Saturday. “It’s looking doubtful,” one source said Friday. “Golden State still likes him, and there’s still a chance he’s back,” another source said of the Warriors. “But they have a lot of moving parts as they work through the Jonathan Kuminga situation, so Gary could land elsewhere next season.”