Rafael Nadal moves step closer to Italian Open title with comfortable victory

World No 4 Rafael Nadal beat American Jack Sock in Rome (Picture: Getty)

Rafael Nadal cruised into the quarter-finals of the Italian Open with a 6-3 6-4 win over Jack Sock.

Nadal, who remains unbeaten on clay this year, moved a step closer to bagging his fourth title of the season as American Sock was unable to truly test the Spaniard.

Who will win the battle for the