Jose Mourinho would probably be the first to argue that United's defensive woes were inevitable the moment some of his centre-half targets were vetoed in the summer and plenty would support the view that reinforcements are required, with the dependence on goalkeeper David de Gea becoming unhealthy.
And Antonio Rudiger has opened up on the 2-2 draw and the incident.
When asked if he was glad of a build-up without speculation about his own future, Mourinho said: "I hope so". Yes, it bothers me. Hazard said this week that he would like to play for Mourinho again but, as much as the Portuguese would love to have him at Old Trafford, he said Chelsea would never sell to them.
"I think I would try always to control myself and to respect the stadium and the supporters that were my supporters for many years", he said.
Mourinho, who was the subject of taunts from the home crowd, then held up three fingers to the Blues faithful after the final whistle - in reference to the three Premier League titles he won during his time as Chelsea boss. "I just saw the benches standing up, and I was like 'what, a fight?'".
United go into the clash sitting seven points adrift of Chelsea but at least with positive feelings from their last match two weeks ago when they recovered from two down to beat Newcastle. "But after the game, with the way the game was, it is an very bad result for us and a phenomenal result for them". We conceded from two set-pieces, but that is a way to score goals and you have to be able to defend against that.
The Manchester United manager has previously insisted that he can handle the persistent criticism from former players, most notably Paul Scholes.
"He's a nice kid, we had a good relationship, we were champions together".