It was a night to forget for Manchester United as they let a two-goal lead slip and conceded a last-minute equaliser against Carlo Ancelotti's Blues.
The best of both worlds saw United's attack take them into the first half break with a 2-0 advantage, however, it was the defence that ultimately cost them the three points in a huge game for The Reds.
Title race over?
United knew this game would present a great chance to build momentum on their emphatic 9-0 win over Southampton midweek.
However, following United's result, City now have the opportunity to extend their lead at the top of Premier League.
United fans will now be thinking 'what if' they're side had beaten Sheffield United and Everton. Six points gained over those two sides would have put them in the hunt for the title - instead now it's five points dropped.
A worrying defence
Last night, The Toffees scored three goals from three shots on target. It was a smash and grab result, but United continue to struggle to see out games and individual errors is what lost them the game.
The Reds' defence have time and time again struggled with defending corners and set pieces this season - conceding from a corner or set piece against the likes of City, Spurs, Sheffield United and Paris Saint Germain.
David De Gea was heavily scrutinized for his part to play in two of Everton's goals.
United's Number One has been seen to cost his side points in important games, and his poor performance last night, could tempt Solskjaer to start Dean Henderson in place of out of form Spaniard.