Speaking with reporters after the game, Warriors head coach Steve Kerr revealed what went wrong.After admitting the Warriors ran out of gas, Kerr said (via Sam Gordon of the San Francisco Chronicle),

The Golden State Warriors will face the mediocre San Antonio Spurs, although they have been surging without their best player.

Steve Kerr implored the Warriors to work hard after their free-throw woes came back to bite them in their loss to the Clippers.