Clippers, Doc Rivers agree on long-term extension Unknown 00:09 Rivers officially signed his contract extension Saturday to remain with Los Angeles long term. Share this Share on FacebookTweet on TwitterPlus on Google+ Related PostsWGC-Dell Match Play leaderboard: Live scores, results from Round 1 playCris Carter explains why Rob Gronkowski shouldn’t come out of retirementUnder the Radar at UFC Philadelphia: Jack HermanssonRoger Goodell: NFL seeks ‘all the facts’ in Robert Kraft case before any actionBrowns coach Freddie Kitchens can handle everything you think he can'tNFL trade rumors: Patriots, 2 other teams 'very interested' in Josh Rosen