Manchester United forward Cristiano Ronaldo has admitted in an interview with Piers Morgan that he "doesn't have respect" for Erik ten Hag - and it's not the first time he's fallen out with one of his managers.
In a controversial interview, which will be broadcast in full on TalkTV's Piers Morgan Uncensored show this week, Ronaldo accused United of "betraying" him this season.
He also attacked United boss Erik ten Hag, saying: "I don't have respect for him because he doesn't show respect for me.
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"If you don't have respect for me, I'm never gonna have respect for you."
It is not the first time Ronaldo has fallen out with one of his managers. Here, we take a look at some of his previous bust-ups down the years.
Ralf Rangnick
Ronaldo's most recent disagreement before Ten Hag came with United's interim boss Ralf Rangnick when he substituted the Portuguese against Brentford earlier this year.
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Ronaldo was United's top goalscorer at the time and made it known he was upset at being subbed off.
Rangnick addressed the issue after the match and said: "I didn’t expect him to hug me after being substituted.
"I have no issues whatsoever with Cristiano. I’ve been here six weeks and never had any issue with him – none whatsoever."
Jose Mourinho
During his time at Real Madrid he also fell out with Jose Mourinho despite scoring over 60 goals in 2012.
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"When I criticised him from a tactical point of view because I felt he could still improve, he did not accept what I had to say," said Mourinho.
"That might be because he thinks he already knows everything and the coach cannot help him grow anymore."
Rafa Benitez
Midway through Benitez's first year in charge of the Spanish giants in 2015, Ronaldo reportedly feared that the team would win nothing with the Spaniard in charge and told Madrid president Florentino Perez.
Sir Alex Ferguson
He has even had arguments with United legend Sir Alex Ferguson, who brought him to Old Trafford as a youngster.
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Ferguson took Ronaldo off early against Manchester City in a Premier League match in 2009 to try and keep him fresh for a Champions League final.
The Portugal international responded by throwing his tracksuit on the floor and once again made his feelings known.
Andrea Pirlo
Ronaldo also had troubles with Andrea Pirlo at Juventus. The Italian manager said: “There is no contract clause that says he can't be subbed off," Pirlo said.
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"He knows he is a fundamental player for us but to get his breath back, he must always be at the top."
Fernando Santos
Meanwhile, during Portugal's defeat against Serbia last year, Ronaldo was seen venting his frustrations at Fernando Santos.
That defeat put Portugal's World Cup qualifying hopes in danger and forced them into a play-off match.
Topics: Manchester United, Cristiano Ronaldo, Erik Ten Hag
Brad Cox