Ricky: Murray leads the head-to-head series 9-1. They have never faced each other on clay, in part because Murray generally does not stick around as long in those tournaments as he does on grass or hard courts. He is, however, in stellar form on the slow stuff right now. The Scot extended Rafael Nadal to 7-5 in the third in the Rome quarterfinals and he delivered an impressive, gutsy effort in a 12-10 in the fifth win over Philipp Kohlschreiber in the Roland Garros third round. Verdasco is also in fine form, but his heavy topspin forehand to the…