Ubaldo Jimenez is a very interesting prospect. He is an amazing pitcher, and he would ultimately be a player the Yankees would love to land.
He is young and has the talent to be good for a long time if he finds a comfort level under the bright lights of New York.
The Yankees, if they could, would likely go after him very aggressively and try to sign him.
The only issue is, as much as there are rumors going around that the Yankees want to get him, there are just as many saying that the Rockies will absolutely not part with their ace.
So, ultimately, the likeliness of this deal happening is not very high. But if there is a shred of truth to these rumors then the Yankees will go after him aggressively.