Declan rice is a good defensive midfielder and Arsenal made the right decision to sign him. He will go on to create memories with Arsenal just as he has started with a great win against Manchester united. Declan rice played very well against Manchester united and got a goal.
Manchester united is weak at their defense and that's why they conceded a goal just one minute after scoring Arsenal. Their defense also lack concentration because knowing the game was about to end, they would had defended properly and taken home one point.
The officiating staffs of the game contributed in Manchester united losing because they officiated very poorly but that wasn't an excuse because from how Arsenal played, they would had still found a way to win the game and as for the last goal, G. Jesus is world class.
He has already created history by scoring his first ever Premier League goal against Man United. Declan was active enough to help overpower Bruno and Erikson during the first half performance.
Before the defense, the coach should be the blame for the overall selection he should take all the blame and Man United need to improve.
Dragging points with Chelsea is what they are doing. A new plans for a solid defender and the exit of Maguire should be planned.