Brian Kelly expressed some serious frustration about his team following a third-straight opening loss in his tenure at LSU. After the 27-20 defeat to USC in Las Vegas tonight, Kelly punched the table during a response he gave in his postgame press conference. CLICK HERE to go to PrizePicks and use code ON3 to receive a guaranteed $50 once you play $5 in lineups! “That’s what I said to the team. We had some guys play their butts off tonight and we’re sitting here again – we’re sitting here again talking about the same things!” said Kelly as he slammed the table. “About not finishing when you ha…