Bulgarian Dimitrov downed by Sock in first round

French Open - Roland Garros, Paris, France - 26/5/15. Men's Singles - Spain's Rafael Nadal in action during the first round. Action Images via Reuters / Jason Cairnduff

PARIS (Reuters) - Tenth seed Grigor Dimitrov fell at the first hurdle in the French Open on Tuesday, beaten in straight sets by American Jack Sock.

It was the second first-round Roland Garros loss in a row for the Bulgarian, who went down 7-6((7) 6-2 6-3 to the 22-year-old Sock who had never beaten a top-20 player in a grand slam.