Breaking news: Ralf Ragnick reveals that Cristiano Ronaldo causing problem for three Man Utd players including Harry Maguire

 Cristiano  is always a popular topic in 

football conversation, and it's been another

 season of making headlines - positive and 

negative - at Manchester United . The 36-year

-old returned last summer and individually

 has characteristically impressed, but he could

 also be the root of United's woes.

Ronaldo's 14 goals in 21 games this term

 - in a massively underperforming team - 

has squashed suggestions that the drip would

 finally stop when it comes to his prolific 

exploits in front of goal.

But one of the Red Devils' main criticisms

 under Ole Gunnar Solskjaer and Ralf Rangnick 

has been their inability to play effectively

 as a team.

Many believe Ronaldo's insistence on 

his control in the dressing room and on 

the pitch hinders United and their talented

 young attackers.

And based on the latest murmurs coming

 out of Old Trafford, there could be some

 truth to those concerns.

Express Sport understands there are 

rising tensions between groups in Ralf 

Rangnick's squad, and he's struggling

 to manage the issue.

Namely, club captain Harry Maguire, 

Edinson Cavani, and Mason Greenwood 

have all found Ronaldo's undroppable 

status frustrating in their current roles.

Maguire has been accused of lacking 

authority as captain, especially since Ronaldo's

 arrival and the overbearing leader personal

 that comes with him

And there is discontent with the influence

 Ronaldo holds over international team-mates

, particularly those who can speak Portuguese.

Meanwhile, there are concerns over whether

 Ronaldo's consistent presence on the 

pitch is damaging Greenwood's development.

The 20-year-old is naturally a striker and 

boasts incredible ability in front of goal, 

but most of his minutes this season have 

come on the wing or as one of Rangnick's 

'wide 10s'.

Cavani wants to leave the club and is one 

of as many as eight players looking for 

a way out.

Despite Ronaldo's goalscoring antics 

this term, the widespread issues impacting

 results pose the question: was re-signing 

the Juventus star worth it?

Rangnick has an entire week with his 

disgruntled players on the training pitch 

to iron out issues and continue to drill his style.

Monday's FA Cup game against Aston 

Villa could be an opportunity for the 63-

year-old to field those frustrated with minutes.

But the competition is United's best and 

arguably only chance of stopping their 

almost-five-year trophy drought.

There doesn't seem to be a feasible quick 

fix for the current dilemma at Old Trafford, 

and Rangnick is undoubtedly realising he 

is enduring one of the toughest tests of 

his coaching career to date.