I couldn't believe what happened with Sheffield's second goal, so I re-watched it.
If you
look closely, you'll see that several players care less about clearing the danger than the glory of our next counter-attack.
Martial is stood waiting for the ball, as is Cavani, as is Bruno. Rashford is out of shot, so is presumably waiting on our right hand side.
Pogba is in the penalty box, but stands there doing nothing, like his job is to feed Martial, Bruno, Rashford or Cavani, not defend.
It's as if all those players are
already thinking about our counter-attack, because Sheffield are so far up the pitch, that's the time to pounce.
That's why seven Sheffield players could pass it so easily around our five actual defenders (the defence + Matic)
We didn't clear the danger. We got punished.
Next time, defend first, counter-attack second!