Serena Williams strolled to a 6-2 6-2 victory over Columbia’s Catalina Castano in the second round of the US Open in her bid to capture a second Grand Slam this year.

French Open, Roland Garros, Paris

US Open, Flushing Meadows, New York

Anna Kournikova ended a run of five defeats with a win over Jana Kandarr in the first round of the SEAT Open.