Roy Keane launched an impassioned and scathing assessment of Manchester United in the aftermath of their 4-1 defeat by Newcastle on Sunday evening.
The Red Devils suffered a 14th league loss, equalling their record for the top-flight which came last term, and were torn apart at times in the second half as a rampant Newcastle ran riot.
Alexander Isak teed up Sandro Tonali fantastically for the opener but Alejandro Garnacho struck back before the break as the two sides went in at the break level.
But Newcastle flew out the blocks, with Harvey Barnes netting twice after the interval and Bruno Guimaraes profiting from a poor Altay Bayindir error to make it 4-1.
United struggled to lay a finger on the Magpies in the second half in particular, and as such Keane was seemingly handed plenty of ammunition with which to criticise his former side's dismal display.
The former captain in fact claimed that his old side looked 'physically and mentally' weak in their defeat in comparison to victorious Newcastle.
'Not good enough, the second half,' Keane told Sky Sports in a damming indictment of the Red Devils.
'That's 14 league games they've lost. There's not enough players who run in the team. You've got to dig deep even when you're up against it.
'United now are physically and mentally a weak team. Newcastle were too fast, they were too powerful, they were more determined.
'I can't see it (signs Man United are getting better). I worry for this group of players. To me they don't look like a strong group mentally.'
While statistically Newcastle were not necessarily in a different league to United - six shots on target vs five, 48 per cent possession vs 52 - the hosts appeared the far superior side.
While the possession stats were similar, Newcastle had 37 touches in the opposition box, more than triple that of United, and had 40 more successful final third passes (103 vs 63).
With United struggling to challenge for the league title in recent years, the blame has been directed towards managers and owners on numerous occasions, but Keane seemed to think some of the onus lies elsewhere for their current plight.
'Nobody likes to lose games but it's the way they lose,' he continued. 'They've lost 14 league games and they lost 14 last season so that's why you've got to point the finger at this group of players. I think the manager's scratching her head.
'I bet he can't believe how bad the United team is. This group of players, the mistakes they're making, they can't seem to get around the pitch. They've got an experienced right-back letting players run past him.
'I think he's gone in there and I think he's been shocked at how bad this group of players are.
'You don't know a group of players until you start working with them. Over the last couple of years a lot of the recruitment was bringing players in who haven't played in the Premier League.
'The lack of goals is a problem. We had a goalkeeper coming in today, in terms of playing out from the back and taking chances, it's madness. Great teams lose football matches but sometimes it's the way you lose them.'