Manchester United fought back from a 2-0 deficit against Southampton to play out a 2-2 draw in another disappointing display from the Red Devils.
Mourinho dropped in form Anthony Martial to the bench in the encounter.
The Saints took the lead in the 13th minute, seven minutes later, Cedric Soares scored a sublime free kick to increase the lead to pile more pressure on Jose Mourinho.
Romelu Lukaku scored his first goal since September 15 to reduce the deficit.
Anders Herrera restored parity for Manchester United in the 39th minute to end the first half on level terms.
Manchester United couldn’t break down the resolute saints defence to beat Southampton who has recorded only one victory all season.
Manchester United will need to find their form as they welcome in form Arsenal at Old Trafford on Wednesday.