Matthijs de Ligt insists Manchester United players must take responsibility for poor results amid growing pressure on manager Ruben Amorim.
United suffered a third defeat in six Premier League games this season in losing 3-1 at Brentford on Saturday, while they were also humiliated by League Two Grimsby in the Carabao Cup.
Portuguese boss Amorim has yet to oversee back-to-back league wins during his 10 months in charge and, after last term's 15th-placed finish - their lowest position since 1989-90 - United again reside in the bottom half of the table.