Warriors' Steve Kerr had spinal fluid leak, no timetable for return. Warriors' Steve Kerr had spinal fluid leak, no timetable for return. Warriors head coach Steve Kerr reveals more details about his back injury but is still unsure when he will return. After the first two days of training camp, the Golden State Warriors announced that head coach Steve Kerr would be taking an indefinite leave of absence from the team. Kerr had offseason back surgery to fix a ruptured disc in his spine and wanted to focus on his rehab and recovery. Attending Golden State's practice on Sunday, Kerr revealed to reporters that he was experiencing symptoms from a spinal fluid leak that occured after his first back surgery.