The Argentine defender was handed an unusual request by Jose Mourinho once the transfer was made official.

Despite the current problems going on at Manchester United, some players still find time to share a few laughs. Such was the case of Marcos Rojo, who had a funny story about how he wasn't happy to share locker rooms with Alexis Sánchez.

Speaking to Argentine TV network TyCSports, Rojo jokingly revealed why he considered a bad move to have Sánchez around.

"Every time we faced each other I kicked him around and he'd do the same to me. Later, I'd insult him and he would reply in the same fashion. That's why I didn't want him around,"Rojo joked.

When the player's signing was only details away, Rojo had a conversation with Jose Mourinho, who had a very special favor to ask from him before Sánchez arrived.

"We had a private talk during a training session. He asked me to go over where he was and told me 'we're signing Alexis Sánchez, please don't kill him during tomorrow's training," Rojo added.

The Chilean ace hasn't been at his best form since joining the Red Devils, playing ten games and having a hand in just three goals (one goal, two assists).