Erik ten Hag acknowledged Marcus Rashford's defending was an issue in Manchester United's chaotic first half against Porto before he was substituted.
Rashford put United 1-0 up in the seventh minute and played in Rasmus Hojlund to extend United's advantage in the 20th minute.
However, Porto scored twice within seven minutes to head in level at half-time. Alejandro Garnacho warmed up at half-time and surprisingly replaced Rashford, who did not complete 90 minutes in any of his previous five United appearances.
Ten Hag claimed Rashford's removal was rotation-related. READ MORE: Van Nistelrooy makes his presence felt as United salvage draw READ MORE: An 8/10 and 4/10s - United player ratings At his post-match press conference, Ten Hag stressed the need to introduce Garnacho, who was not deemed fit enough to start the match. "Garnacho was my best player on Sunday by far and also in many other games," Ten Hag stressed. "I think in the season as I assess it so far, he is bringing us so far the offensive threat by creating chances, assists, also scoring.
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