Results from the ATP tournament in Marseille on Friday (x denotes seeding): Quarter-finals Daniil Medvedev (RUS x1) bt Jannik Sinner (ITA x5) 6-2, 6-4 Matthew Ebden (AUS) bt Karen Khachanov (RUS x3) 4-6, 6-4, 6-2 Pierre-Hugues Herbert (FRA) bt Stefanos Tsitsipas (GRE x2) 6-7 (6/8), 6-4, 6-2 afp