Serena Williams swatted aside the limp challenge of Elina Svitolina 6-1, 6-1 on June 1, to reach the quarter-finals of the French Open. The world No1 rarely sparkled on a damp, dank Centre Court at Roland Garros, but always wielded enough firepower to see off the Ukrainian 18th seed in a match that was delayed by two days due to the fickle Parisian weather.