Valencia boss Gary Neville admitted his side's 7-0 Copa del Rey semifinal mauling at the hands of Barcelona on Wednesday was one of his worst nights in soccer - but he refused to quit.

Luis Suarez scored four goals and Lionel Messi added a hat-trick as Barca rendered next week's second-leg meaningless with what Valencia sporting director Jesus Garcia Pitarch described as one of the worst results in the club's history.

Neville has yet to win in eight La Liga games since taking his first managerial role in December and with Valencia set to visit fellow struggler Real Betis on Sunday, Pitarch refused to give his full backing to Neville staying in charge beyond the weekend.