Mourinho is under pressure at United having seen his side pick up just ten Premier League points from their opening seven games. That pressure has intensified amid rumours of a falling out with star midfielder Paul Pogba. The pair have regularly criticised each other in the media, with relations appearing frosty on the training ground. Pogba has failed to impress since re-joining Manchester United from Juventus for £89million in 2016.

And while Keane admitted he’s not solely talking about Pogba, the former midfielder believes United players need to work harder for each other. "You talk about footballers and managers, not every player is going to get on with their manager and not every manager is going to like every player," he told Notts TV. "But what you do as a footballer, and I've had one or two disagreements, when you cross that line you play for your team. "I don't care what fallout you've had with your manager, I don't care if you've been at each others throats. That is part of the industry. People do fall out. "Unfortunately when you're Man United, one of the biggest clubs in the world, things will get exaggerated.

Jose Mourinho is under increasing pressure as Manchester United boss

Roy Keane has wished Jose Mourinho luck as Manchester United manager

"And if you're a footballer for Manchester United, you put that jersey on, you walk out and you don't give 100 per cent because you might be upset with somebody then good luck to Mourinho with this stuff." Keane’s former Manchester United team-mates Paul Scholes and Rio Ferdinand took aim at Jose Mourinho following the goalless draw with Valencia in midweek. But ex-Arsenal goalkeeper David Seaman wants to see Mourinho win the battle and keep his job. "You know it’s not good when a player of that stature [Scholes] is having a right old go at the club… alright, he’s not having a go at the club, but he’s having a right go at Mourinho," Seaman told talkSPORT. "But no, it’s not good and it’s a little bit surprising. But when you speak to anybody about it they don’t really know what to say and everybody seems to be against Mourinho.

Paul Pogba has reportedly fallen out with Manchester United boss Jose Mourinho