There are two issues that still bug/embarrass me about their 3rd goal.
Firstly, we are the specialists of route one football. City, specialists of passing game probably only attempted ONE route one effort in the entire season and executed it to perfection against Jose's setup that's been working on that approach for over half a season!
Secondly, (and I note Sanchez being slaughtered in the media), how a simple nudge from a player slightly smaller and lighter could just bundle Sanchez to the ground. Assured defenders have firm footing and commanding presence, but our Davinson, whenever he needs to turn 90 degrees or more loses his balance, hence we see his headers and clearances in panic mode. IMO, the ball was in the air long enough for Sanchez (the last man) to position himself.
It is not the first time our defenders are guilty of misjudging the flight of the ball, hence why we concede regularly from set pieces. Dier is also guilty of this.
All comes down to coaching. Whilst I agree Sanchez and Tanga might be the future pairing in the defence, they need to be honed/coached. Surprised that having Ledley amongst the coaches isn't helping, unless the training focus is very skewed towards some alien practices, 'cos I'd be damned if I could see any sign of continuous improvement!