Amorim would like United to build up with a genuine three at the back, rather than the four it has been when protection is the first priority. At Anfield, United took the lead because Martinez sensed a moment to press high, snapping into Mohamed Salah to win the ball and then stay up to receive Fernandes’ slipped pass.

Ruben Amorim has been struggling as Manchester United boss and his reaction to a wild 2-2 draw at Liverpool on Sunday said it all. He was very happy with the performance and so many of his players put in a spirited, focused and committed display. But he was angry he hasn’t seen it more often since he arrived a few months ago.

Ruben Amorim believes Thursday's Premier League match at home to Southampton will show him more about his Manchester United side than their recent performances against Liverpool and Arsenal.