Manchester United have been subjected to a lot of unwanted attention this week, as it has been heavily speculated that up to 17 players want to leave the club, and there is one man in particular rumoured to want out at Old Trafford who could cause big problems for interim manager Ralf Rangnick.

What's the word?

The Daily Star is reporting that Cristiano Ronaldo is considering his future at the club following the appointment of Rangnick and could even potentially cut short his 18-month move back to Manchester.

Ronaldo has a contract with the club until 2023, but this report suggests that the superstar could leave the club in the summer if the recruitment of a new manager after the German's interim period this summer isn't the right one for him.

It would reportedly put huge pressure on both Rangnick and newly-appointed chief executive officer Richard Arnold, who will need to make sure that the right decision is met regarding the identity of the next permanent manager at Old Trafford.

The £31.5m-rated forward, who was hailed a "real icon" by team-mate Jesse Lingard, was last year reunited with the club which gave him his worldwide platform after United swooped in for the player when he was rumoured to be linked with a move to Manchester City.

Fans will be fuming

Despite a glittering career which has seen the Portugal captain become the second-highest scoring player in the history of football, it's safe to say that settling back into United is a challenge for him, especially with the high standards that he holds on himself and the team around him.

Ronaldo has scored 14 goals and bagged three assists so far this season, which isn't bad at all. He is currently the joint-fourth highest scorer in the Premier League with eight goals and is United's top scorer this season in all competitions by a stretch, with Bruno Fernandes and Mason Greenwood trailing well behind him in joint-second place on five goals each.

Fans will surely be furious if the rumours are true that there is going to be a potential early exit for one of their club legends, especially when he is having the most influential output in the team so far this season, and there will surely be an expectation to keep the best player in the squad happy to avoid further upset and poor performances.

The problems at United are only escalating further after a disappointing result at Old Trafford on Monday with a home defeat to Wolves and now the rumoured upset in the dressing room amongst many players. Therefore, Rangnick will surely want to send a message of resilience to the media and fans with a good performance and a result in their FA Cup game against Aston Villa on Monday night, as the current situation threatens to turn into a nightmare for him.

In other news: Rangnick must hold on to this team-mate of Ronaldo