Chelsea captain John Terry scored an own goal to gift Crystal Palace a 1-0 victory on Saturday, weakening the west London team's grip on the Premier League lead. The veteran center back headed Joel Ward's cross past his own goalkeeper, Petr Cech, seven minutes into the second half at Selhurst Park. Chelsea's first loss to Palace since 1990 means Manchester City could topple Jose Mourinho's side from the summit by beating Arsenal in the late game. (For moresports news and updates,followAhramOnline Sportson Twitter at@AO_Sportsand on Facebook atAhramOnlineSports.) http://english.ahram.org.eg/News/97822.aspx