Dimitar Berbatov hopes to see Casemiro wearing a Manchester United shirt for a long time to come.
Speaking to Betfair, former Red Devils striker Berbatov addressed rumours that the Brazilian midfielder is unsettled at Old Trafford and looking for a way out after joining the Premier League giants last year.
"I hope this is just a bad rumour because it’s going to bring unwanted heat towards him in a moment where he’s not playing how he used to play," Berbatov said.
"So, I hope it’s nothing but a rumour and that there’s nothing to it. He has shown at Real Madrid how highly rated he is, how he can play top, top football - he showed that at Man United in his first season."
Berbatov rates Casemiro highly, and feels that the former Real Madrid man can still be valuable for a United side that are trying to push their way back up the table. It's on the player himself to show what he's worth, Berbatove said.
"He’s set high standards for himself, so it’s up to him to continue to prove to everyone that he’s the player that people know he is," he said.
"Time is going by and he’s getting older, so he needs to be smarter in how he plays the game, how he approaches games, how he reads the game.
"I hope he’s back fit as soon as possible as he’ll bring that maturity and calmness of reading and knowing the game. He’s still a presence that you can count on.
"Don’t write him off so quickly because he deserves to be given more time even when he’s not playing well. He’s a world class player."