The world No.1 fended off a late challenge from fellow southpaw Marterer to book a 12th Roland-Garros quarter-final berth.
Gallery: best of Day 9
Simona Halep was all smiles as she breezed through to the quarter-finals. Her opponent, Elise Mertens, was seeded 16th and had enjoyed an impressive clay-court lead in to Paris, yet Halep, the world No.1 demolished the Belgian for the loss of just three games in 59 minutes.
- ©Corinne Dubreuil / FFNadal notches 900th match win
- ©Nicolas Gouhier / FFTSchwartzman fights back to win 'Diego and Goliath' clash
Diego Schwartzman slayed Kevin Anderson - and now he’s after the biggest giant.
- ©Corinne Dubreuil / FFTHighlights: Halep vs Mertens
World No.1 Halep was in dominant form against rising star Mertens, beating the Belgian in less than an hour.