On arrival to Manchester united the new haed coach Amorim made it clear to the management and fans in one of his press speech, that the team was going to experience a downtime with performance for now and they shouldn't expect overnight improvement, so for this, am not worried about United irregular performance , maybe till when a new season starts. As a fan the win against Manchester city wasn't a surprise for me since Manchester city were in a drought time where they were experiencing streaks of losses, but what amazed me was that of Liverpool. The draw was more of a win because not many fans ever thought Manchester United were going to perform any better but they did eventually.
It is more reasonable not to expect a good result from Manchester United overnight under the new coach, but in two days Manchester United will also face a team that is also quite strong in the Premier League this season at the Emirates Stadium. So Manchester United is expected to be able to play their best in the match even though it is an FA Cup competition, but the match is also important for Manchester United to win so that the team has a little change and is not seen as weak by its rivals through the hands of Amorim.