As he bid farewell to Real Madrid on Monday, Casemiro said his upcoming move to Manchester United is not motivated by money.
He said he is joining the biggest team in the world after nine years with Real Madrid.
Casemiro's four-year deal with United would make him one of the highest paid players at the club.
He said he would have left a long time ago if it was about money.
People who think that are wrong don't know me.
The club has always been nice to me. My decision is my path.
Casemiro was a member of the Real Madrid team that won the European Championship five times and the La Liga three times.
He made his 336th appearance for the Spanish giants as a substitute in last week's opening-day win at Almeria, after starting last season's European Championship final.
Casemiro spoke to his agent after the final as he felt like he was about to end his career here.
It was the most difficult decision of my life, but I'm excited about the future. I want to know a different country and a different culture.
I'm going to the biggest team in the world, that can compete with the greatness of Real Madrid.
United have lost their first two games of the new season and will be looking to get back on track against the Reds.
The Portugal forward has been linked with a move away from Old United this summer, despite winning four European titles with Casemiro.
Casemiro hopes that he stays because he's one of the best players of all time.
I would like to do everything I did here. I would like to win the league there.
One of the best moments of my life is happening. I think it's a good time to make this decision because I feel like I'm in great shape.
Florentino Perez was emotional during the ceremony.
He said that you have been exemplary every day. You have the right to make a decision and we must respect that.
The image of the champion that you are is gone. You will always be an ambassador of Real Madrid even if you go to a friendly club like Manchester United.
You will always be a part of the group. It is and always will be your home.