Real Madrid star Cristiano Ronaldo admits Manchester United were NOT big enough for him.

Ronaldo, 32, had an impressive spell in England, winning three Premier League titles during his time at Old Trafford under Sir Alex Ferguson.

But since his move to Spain, the Portugal international has become one of the best players on the planet.

And Ronaldo says he felt he had to leave United for Real for a fresh challenge.

“When I became a Manchester player, it was a moment of maximum pride for me. But I think it was more for my family," Ronaldo told The Players' Tribune.

“At the beginning, winning trophies was very exciting for me.

"But my dreams were getting bigger. I guess that's how dreams work, right?

“I had always admired Madrid and wanted a new challenge."