The incident has been a topic of discussion among fans, who were split on whether play should have been stopped. However, Gallagher has backed Oliver's decision, saying it was an unfortunate incident.
Liverpool have now lost four games in a row, and are facing a Champions League clash against Frankfurt. The team is desperate to end their losing streak, which has been a difficult period for manager Arne Slot.
The controversy surrounding the goal has overshadowed the match, but Gallagher's comments have provided clarity on the referee's decision.
The Manchester United match was a significant win for the team, but the controversy surrounding the goal has highlighted the importance of accurate refereeing decisions.