Rafael Nadal defeated American qualifier Sebastian Korda 6-1, 6-1, 6-2 to reach the Roland Garros quarter-finals for the 14th time on Sunday, staying comfortably on course for a 13th French Open title and record-equalling 20th Grand Slam crown. Second seed Nadal racked up his 97th win at the tournament against just two defeats since his title-winning debut in 2005. He goes on to face either German sixth seed Alexander Zverev or Italian teenager Jannik Sinner for a place in the semi-finals. dj/mw