Slot stated that MacAllister is not yet ready to play a full 90 minutes in the Premier League due to missing some preseason training and not being accustomed to playing three games a week.

MacAllister played for Argentina and reported feeling tired after 70 minutes, which was a concern for Slot.

Slot also mentioned that MacAllister was feeling the effects of a tackle, but said the player assured him he was fine to continue playing.

However, Slot decided to substitute MacAllister at halftime to ensure he would be available for the team's next two matches.

This decision was also influenced by the fact that Slot had already made a substitution in the first half and wanted to preserve his remaining substitution for later in the game.

Slot added that the team's performance was also a factor in the substitution, as they were not playing as well as they could have been.