Novak Djokovic and John Isner book their spots in the quarterfinals of the Internazionali BNL d'Italia

ROME, Italy -- No. 2 seed Novak Djokovic advanced to the quarterfinals of the Internazionali BNL d'Italia with a 6-4, 6-4 victory over Roberto Bautista Agut on Thursday.Djokovic awaits the winner of Juan Martin del Potro and Kei Nishikori.In other men's ma