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.

Manchester United are reportedly keen on bolstering their defensive options with the signing of Barcelona's Andreas Christensen. The Danish international has struggled for regular first-team football at the Camp Nou and could be available for a move away from Catalonia.

The pressure to deliver can be the key to turning Manchester United's season around, coach Ruben Amorim said on Wednesday as his team looks to end a four-match winless run in the Premier League when they face bottom side Southampton.

Ruben Amorim is expecting to find out more about his Manchester United players against Southampton than he did in games with Liverpool and Arsenal. United produced two of the better performances under their new head coach in recent weeks in the 2-2 draw with Liverpool in the Premier League before beating Arsenal in the FA Cup third round,