Man United have now failed to beat Stoke City, Burnley, Arsenal, West Ham United and Everton despite producing strong performances.
Their inability to close out games leaves them nine points off fourth spot and a further 13 points adrift of leaders Chelsea in the Premier League.
Neville, speaking after United’s 1-1 draw with Everton, claimed Mourinho has a big problem when it comes to closing out results.
“It got to 85 minutes and you knew it was a big moment,” he said.
“It’s not a one off, it’s getting to the stage where you are saying is that what they are, because they have done it so many times.
“Jose Mourinho will be losing faith in the sense they are playing quite well – although they didn’t play brilliantly today – but not seeing it out. You have to see it out. That’s the disappointment.
“It’s a repeat of what has happened in the last few weeks. In the last 20 minutes it was set up perfectly for a counter attack and to make it 2-0, but they didn’t have the quality and precision to get out quickly with the first pass out of defence.”
With Everton throwing the kitchen sink at United in the closing stages at Goodison Park, you could almost sense that something calamitous was about to happen.
This is, after all, a United side still plagued by self-doubt and uncertainty, painfully aware of their recent failure to secure wins in the Premier League in recent weeks. Holding on to this 1-0 lead felt crucial – not just for the three points at stake, but for United’s confidence as a whole.
And now, following another moment of brashness, Mourinho’s men find themselves even further in the mire of mental fragility as they enter the busy Christmas period.