Casemiro has established his name in the Premier League in his debut season.
The former Real Madrid midfielder and five-time Champions League winner joined the Red Devils last summer in a deal worth £60 million.
Many doubted United paying such a huge transfer fee for a 30-year-old midfielder but Casemiro has made his doubters look foolish.
He has produced some excellent midfield displays and has formed a defensive field in the middle of the park.
“When you arrive at a new club, you always dream of making history… especially if we see the greatness of this club,” the Brazil international said. “We know the history.
“But of course, I was aware of needing some time to adapt and of the rivals having a long-term plan before ours, like Arsenal, Manchester City and Liverpool.
“Everyone here has been lovely with me and since the first day I feel at home here. I appreciate all the effort that the club has done to bring me here, John (Murtough) included.
“I’m very comfortable at Manchester United, extremely happy to be here and enjoying every moment like a 15-year-old kid!