World No1 Andy Murray moves into the fourth round at Roland Garros with a straight sets win over Juan Martín del Potro on Saturday. In a repeat meeting of the gold medal match at last year's Olympic Games, Murray beats del Potro 7-6 (10-8), 7-5, 6-0. The Brit will face Karen Khachanov or John Isner next in Paris Andy Murray too good for Del Potro in fine French Open battle Follow all the action live from Roland Garros on ITV4