A lethal finish from Luis Suarez on 55 minutes gave Barcelona a 2-1 victory over Real Madrid in a typically frantic ‘Clasico’ last night as they stretched their lead at the top of La Liga to four points over their rivals. Barcelona went ahead against the run of play when French defender Jeremy Mathieu headed home his first league goal for the Catalan club from a Lionel Messi free-kick after 18 minutes. Cristiano Ronaldo had already hit the crossbar but he made no mistake after 30 minutes when he slotted the ball past keeper Claudio Bravo following a delightful back-flick by Karim Benzema.