Golden State Warriors coach Steve Kerr has undergone a spinal cord leak draining procedure but still remains sidelined indefinitely, according to Joe Lacob, owner of the NBA club. Lacob told Bloomberg Radio in a Friday interview about Kerr's procedure and his hope that it will help solve the health issues that have forced Kerr to take a temporary leave from the squad. Kerr guided the Warriors to the 2015 NBA title and a record 73-win campaign in 2015-16 only to finish one win shy of a repeat crown, falling victim to the Cleveland Cavaliers in the greatest comeback in NBA Finals history.