Well, I watched this Ramos in Umag playing against Dolgopolov and was impressed. Extremely determined fighter with a nice lefty forehand. Can take control of the point with it and is a good baseline player, if you wanna win you'll have to play hard and play good. He's making most out of his talent. I must admit I'm tempted to become a fan.
So, if he played his best tennis and Mugrin was tired from Beijing, this is not such a shocking result. Plus, he had an edge as a qualifier because he adapted to these courts perfectly.
Nadal has been calling for this guy for his entire career. He has finally arrived.