Real Madrid midfielder Casemiro would welcome the arrival of PSG striker Kylian Mbappe.

Off contract in June, Mbappe is able to begin negotiating with other clubs from January 1 - 26 days' time - and the expectation is that he make the move to the Estadio Santiago Bernabeu, but Casemiro isn't worried about his arrival having an impact on Vinicius Junior.

"He's not our player. It's difficult to talk about someone who isn't here," Casemiro said during Monday's pre-match press conference.

"He's a great player and compatible with anyone in the world, including Vini.

"I like football and everyone who likes football knows that Mbappe is a great player."