Highlights: French Open day nine

Tennis - French Open - Roland Garros, Paris, France - June 3, 2019. Austria's Dominic Thiem in action during his fourth round match against France's Gael Monfils. REUTERS/Vincent Kessler

(Reuters) - Highlights of the ninth day at the French Open, the second Grand Slam tournament of the year, on Monday (times GMT):

DAY NINE WRAPUP: Halep and Djokovic storm into quarter-finals

Tennis - French Open - Roland Garros, Paris, France - June 3, 2019. Amanda Anisimova of the U.S. greets the crowd after winning her fourth round match against Spain's Aliona Bolsova. REUTERS/Vincent Kessler

1945 KHACHANOV STOPS DEL POTRO

Karen Khachanov beat Argentine Juan Martin del Potro 7-5 6-3 3-6 6-3 to become the first Russian man since Mikhail Youzhny in 2010 to reach the quarter-finals at Roland Garros.

Tennis - French Open - Roland Garros, Paris, France - June 3, 2019. Romania's Simona Halep in action during her fourth round match against Poland's Iga Swiatek. REUTERS/Vincent Kessler

1751 ANISIMOVA TOO GOOD FOR BOLSOVA

American Amanda Anisimova reached her first quarter-final at a major by dismissing unseeded Aliona Bolsova 6-3 6-0 in 69 minutes.

Jun 3, 2019; Paris, France: Alexander Zverev (GER) in action during his match against Fabio Fognini (ITA) on day nine of the 2019 French Open at Stade Roland Garros. Mandatory Credit: Susan Mullane-USA TODAY Sports

1617 HALEP STAYS ON COURSE WITH EASY WIN

Simona Halep, who is looking to become only the sixth woman to defend her Roland Garros title in the professional era, eased past Polish teenager Iga Swiatek 6-1 6-0.

Tennis - French Open - Roland Garros, Paris, France - June 3, 2019. Russia's Karen Khachanov in action during his fourth round match against Argentina's Juan Martin del Potro. REUTERS/Gonzalo Fuentes

1616 ZVEREV QUELLS FOGNINI CHALLENGE

Alexander Zverev reached a Grand Slam quarter-final for only the second time in his career after rallying to overcome Italy's Fabio Fognini 3-6 6-2 6-2 7-6(5). The German fifth seed set up a mouthwatering quarter-final with Novak Djokovic.

Tennis - French Open - Roland Garros, Paris, France - June 3, 2019. Russia's Karen Khachanov in action during his fourth round match against Argentina's Juan Martin del Potro. REUTERS/Kai Pfaffenbach

1512 THIEM FELLS MONFILS

Dominic Thiem extended his perfect record against French opposition at the Grand Slams to 7-0 by defeating Gael Monfils 6-4 6-4 6-2.

1238 NISHIKORI COMPLETES VICTORY OVER PAIRE

Japanese seventh seed Kei Nishikori, whose fourth-round clash against local hope Benoit Paire was suspended due to bad light on Sunday, returned to seal a 6-2 6-7(8) 6-2 6-7(8) 7-5 win. He takes on holder Rafa Nadal in the last eight.

1237 DJOKOVIC CARVES OUT A PIECE OF PARIS HISTORY

World number one Novak Djokovic blasted past unseeded German Jan-Lennard Struff 6-3 6-2 6-2 in their fourth-round contest to become the first man to reach 10 consecutive quarter-finals at Roland Garros.

1047 BARTY OVERCOMES KENIN

Ashleigh Barty shook off a mid-match blip to beat American Sofia Kenin 6-3 3-6 6-0 in the fourth round. The Australian served 11 aces and struck 25 winners to prevail in 90 minutes.

1025 KEYS THROUGH TO QUARTER-FINALS

Madison Keys of the United States beat the Czech Republic's Katerina Siniakova 6-2 6-4 in 76 minutes to advance to the next round. The 14th seed had 26 winners and won five of her six break points to win in straight sets.

0910 PLAY BEGINS AT ROLAND GARROS

Play began with Sofia Kenin taking on eighth seed Ashleigh Barty under cloudy skies in Paris with the temperature hovering at 19 degrees Celsius.

Scattered showers are expected throughout the day with a thunderstorm predicted to hit in the afternoon.

(Reporting by Shrivathsa Sridhar and Rohith Nair in Bengaluru; editing by Sudipto Ganguly, Tony Lawrence, Pritha Sarkar and Clare Fallon)