Manchester United manager Erik ten Hag warned the players have to "step up" after their friendly defeat to Real Betis but felt the training camp in Spain marked a "big win" for some of the youngsters.
United fielded 22 players in the 1-0 loss to the sixth-placed La Liga side, who procured a breakthrough via Nabil Fekir's classy finish from a free-kick routine early in the second-half.
Ten Hag likened the timing of the goal and its manner to the start of the first-half against Cadiz on Wednesday night when United conceded twice inside the first 13 minutes.