Diogo Dalot admits Manchester United lacked energy in the second-half of their draw with Aston Villa on Saturday.
United failed to win for the first time under new manager Erik ten Hag after letting a two-goal lead slip in horrendous conditions during the match in Perth.
Ten Hag's side went ahead when Sancho netted in the first-half, before the winger set-up Marcus Rashford with a cross, who saw his deflected effort diverted into the net by a defender.