Referees know it is wrong to guess a decision that they haven't seen or are unsure about, yet Neil Swarbrick appeared to do just that.
Marcus Rashford burst into the Swansea penalty area and Lukasz Fabianski, sensing danger, raced out and dived towards him.
The Swansea keeper pulled out of the challenge but Rashford, expecting heavy contact, collapsed his own legs.
It was certainly not a foul and Swarbrick's view was totally blocked by players.