A former Manchester United star has admitted he was wrong to spark up a training ground bust-up with Cristiano Ronaldo.
Former United star Rio Ferdinand previously revealed that Ruud van Nistlerooy used to get frustrated with Ronaldo's tricks during training sessions.
The pair were also involved in a bust-up on the training ground, but the Dutchman aknowledged he was wrong in the incident.
"I know that I was wrong in that situation," he said on Ferdinand's Vibe with Five podcast.
"I immediately walked into the dressing room and I sat next to him and apologised for my behaviour when I calmed down.
"That frustration came from somewhere. Now when you are 44 and you look back on things and you know when things are going around you in your private life, things are going on and sometimes can make you frustrated.
"That incident led to a discussion with Cristiano. Of course, you need to realise then and you have to be big enough to acknowledge that."
Click through the gallery below to see 10 famous bust-ups between teammates!