Four minutes before the end of normal time, Leandro Trossard sealed the win for Arsenal from a launching pass by Havertz.
Arsenal has temporarily moved to top of the Premier League table after the Gunners secured a late 2-1 win over Brentford at the Emirates Stadium.
City are currently on three consecutive EPL title wins and seek to become the first EPL club to win four consecutive league titles.
He was also fined £50,000 and issued serious warnings about his future conduct.
Arsenal have gone five points clear off the top of the Premier League table following an emphatic 4-0 win over Everton at the Emirates Stadium.
This victory becomes United’s thirteenth straight home win across all competitions this season.
