The Bees peppered the Reds goal with 31 shots and hit the woodwork three times but went 1-0 down to Mason Mount's 96th-minute goal.
Kristoffer Ajer lashed in an equaliser three minutes later to secure a point for Thomas Frank's side, who have only won two of their past 18 games.
United have recorded four wins this season through goals in added time and seemed certain to claim a fifth but Ten Hag admitted they did not show enough passion and desire.
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Esta historia es de la edición March 31, 2024 de MEN on Sunday.
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