The Everton midfielder received a round of applause from his fellow squad members after issuing an apology for his extraordinary dismissal during Monday's triumph at Old Trafford.
Gueye earned the distinction of being the first Premier League player to be sent off for striking a fellow player in nearly two decades when he struck Michael Keane during the fixture. The Toffees' performance was remarkable as they played with a man down for the majority of the game, including stoppage time, to achieve David Moyes' first win at Old Trafford as a away coach in 18 attempts.
'I want to apologise first to Michael Keane,' Gueye stated on his accounts. 'I take full responsibility for my reaction.'
The Senegalese international was unable to secure an opportunity to speak with the manager or his teammates at the interval. Afterwards, with the away dressing room buzzing after the narrow victory, the 36-year-old requested to address the whole team and the defender in particular.
Gueye could still be disciplined by Everton despite the manager's statement that he appreciates his players fighting with each other. The Scot has a regular punishment process for red and yellow cards, including fines, which is expected to be implemented in this situation.
Everton could be without their key player until the new year. Gueye will serve a three-game ban against Newcastle United, Bournemouth and Nottingham Forest but could be called up for AFCON duty by Senegal before he can return to play against Chelsea on 13 December.
'Emotions can run high,' he added. 'However, there's no excuse for such conduct.'
At the same time, the Manchester United defender claimed his team of showing no immediacy in the recent defeat, which ended their winning streak at five games.
The Red Devils head to Crystal Palace for Sunday's noon kickoff. 'Our upcoming match is absolutely crucial,' commented the defender. 'We have to bounce back from this performance.'
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