"Alexis is a great player, but we didn't used to get on out on the pitch,” Rojo said while on international duty with Argentina.
"Every time we came up against one another, whether in internationals or when United played Arsenal, I would give him a good kicking - and he did the same to me.
"On top of that I used to insult him, and he would reply in kind.
"So when I learned that he was going to join United I said: 'Oh, f***ing hell, no, now this guy's going to be here.'
"We were in Dubai at the time Alexis' transfer went through.
"I was calmly sitting in a chair watching a film when Jose Mourinho came up and gave me a tap on the shoulder.
"He told me: 'We're going to sign Alexis. I don't want you smashing him up in training tomorrow.'
"He burst out laughing."
https://www.express.co.uk/sport/foo...ited-transfer-news-Alexis-Sanchez-Marcos-Rojo