By Ewan Murray Barcelona are aiming to put some light pressure on La Liga leaders Real Madrid this weekend when they travel to Cadiz. Xavi’s side have steadied themselves since he announced that he would be leaving the club at the end of the season, with Barca even securing a 3-2 victory away at Paris Saint-Germain in their Champions League quarter-final first leg midweek. The Catalan side are somehow only eight points off Real Madrid at the top of the table with a Clasico still to play this season, despite the fact that they have underwhelmed in the defence of their La Liga crown. Cadiz are c…