The Ghanaian always vouched for the Portuguese forward in the never-ending debate but had a change in mind after joining Barcelona.
Cristiano Ronaldo and Lionel Messi are two of the greatest players of the modern era, with their rivalry having played a crucial role in helping them achieve that status.
The pair have won plenty of trophies and individual awards, broken numerous records, and put in countless breathtaking performances ever since bursting onto the scene in the early 2000s.
Ronaldo spent nine years at Real Madrid and it was then that he and Messi pushed each other to achieve their maximum potential, giving rise to one of the most iconic sports rivalries of all time.
While the Argentine is still at FC Barcelona, the Portuguese currently plies his trade in Juventus. However, debates as to who has the upper hand over the other continue among the fans.
In his assessment of both the legendary players, Kevin-Prince Boateng suggests he considered Ronaldo the best before joining Barcelona but had a change in mind after watching Messi from up close.
Boateng told DAZN & Goal: “The six months at Barcelona were incredible. Training with Messi left me speechless.
“I had always said that Cristiano Ronaldo was the best in the world, but Messi is something else. He’s not normal.
“While training with him, I felt inadequate for the first time in my career. He was doing incredible things. I felt like saying, ‘I’m done, I’m going to quit playing!'”