Arsenal goalkeeper David Raya is backing Leandro Trossard to bounce back against Liverpool following two damaging recent setbacks. The Belgian attacker was blamed for William Saliba's frustrating dismissal at Bournemouth last weekend as his sloppy back pass allowed Evanilson to race in behind the Frenchman before the Cherries striker was hauled down. Trossard then saw a penalty saved on Tuesday in the Gunners' narrow 1-0 Champions League victory over Shakhtar Donetsk. But Raya insists his