This is for Skip69... I say Blake but it's going to take some time prolly. Luby and Davydenko seem like top ten level only players, Roddick could but he's in a debilitating funk right now and Nalbandian is inconsistent and fragile. Bhagdatis has the skills but he needs to dedicate himself to fitness (ala Fed) to get over the hump. I actually think Hewitt could do it to with a little time as well.