After losing 3-0 (4-1 on aggregate) in the second leg of their Copa del Rey semi-final, Santiago Solari’s side will be looking from some much-needed revenge. Another defeat would leave them 12 points off leaders Barcelona and all-but hand their bitter rivals a second successive La Liga title. More worryingly for manager Solari, his job will be hanging by a thread unless he can guide Real to what looks like an unlikely win. Here, Express Sport looks at the three things he must do to upset the odds. Related articles Cristiano Ronaldo: Real Madrid revelation made after exit, Messi key Jose Mourinho tipped for Real Madrid return before Barcelona clash Play Gareth Bale Gareth Bale’s record against Barcelona makes for miserable reading. In 13 appearances against them the Welshman has just two goals and one assist and he continues to cut an increasingly lonely figure in the Spanish capital having been frozen out by Solari. But the winger has proved he is the man for the big occasion and one of his finest moments in a Real shirt came in 2014 when he scored a stunning winner in the Copa del Rey final against Barca. He also scored in the Champions League…