BARCELONA (Reuters) – Barcelona coach Ernesto Valverde has vowed to continue as coach and says he has the backing of the club and president Josep Maria Bartomeu after Tuesday’s humiliating 4-0 defeat by Liverpool which knocked them out of the Champions League. The semi-final loss to Liverpool after winning the first leg 3-0 was Barca’s second successive dramatic exit from Europe’s elite competition under Valverde after being knocked out by AS Roma last year after winning a quarter-final first leg 4-1. Those failures in Europe’s elite competition, which Barca have failed to win since 2015, threaten to overshadow the coach’s enormous achievements in leading them to back-to-back La Liga titles. “I feel strong, I’m ok and I’m looking forward to taking a step forward, I’m not going to hide behind a wall,” Valverde told a news conference ahead of his side’s league game at home to Getafe on Sunday. “I’ve spoken to the president and I have always felt supported by him and he has given me his absolute backing. When something like this happens it seems like everything is falling apart but we know what this world is like. “Everyone thinks you should burn everything to the ground at…