Gravesen isn't really the type of player they need, he's better as an attacking midfielder, they already have loads of them. They need a replacement for Keane and while Gravesen would tackle a truck he hasn't got the positional sense to be as effective as a DM. He looked average for Everton as a DM and then was class for 6 months when they stuck Carsley in there and moved him further forward.
They also twisted the translation to make it seem more headline-worthy, what he actually said was more like "I would ask that they continue as they have been, respecting our work, and continue to get the players to complete the squad."
They might score more in total, but Ronaldo missed the best part of three years through injury. They won't get anywhere near his goals per games ratio.
I've seen him a few times, not enough to build up a definite opinion as I wasn't really watching out for him, but from what I remember he beats players for fun is pretty quick but can't cross at all.