#1 Manchester United pay for individual mistakes... again.
Yes, Mourinho got the formation wrong - once again. Yes, he erred in selecting Laurel and Hardy in the middle of his defence... but it's inexplicable just how many mistakes were made during the game.
Martial - arguably United's best finisher - messed up his one-on-one by telegraphing his intentions to go to the near post with a lean of his body, Sanchez missed an open goal by taking a touch instead of attempting a first-time finish, Chris Smalling Chris Smalling-ed, Matt Ritchie was allowed the freedom of United's box when the entirety of their defence went behind Lejeune's initial knockdown - like a bunch of over-excited school kids - and completely forgot their zonal marking or man marking responsibilities.
For a team filled with giants - and coached by Jose Mourinho of all the managers on the planet - it's utterly bewildering just why they concede so many goals off set pieces. If they do not cut down on these individual errors that are creeping into their game, United could struggle to hold on to no.2 - and do well in the FA Cup and the Champions League.