Barcelona fell to a late 3-2 defeat at Real Madrid in El Clasico on Sunday, which was a damaging result for any last hopes of winning La Liga. Xavi’s side have had a disappointing week, having suffered a humiliating Champions League exit at the hands of Paris Saint-Germain, and any outside shot of a surprise comeback in the La Liga title race has now been extinguished. Although Barcelona took the lead twice, a 91st-minute winner from Jude Bellingham consigned them to defeat at the Santiago Bernabeu. However, the result could have been very different if several refereeing decisions were deliver…