French Open Day 8: Tsonga upsets Berdych; Sharapova, Federer matches pushed to Monday

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Day 8 is complete. Here's what you need to know:

Women's Seeds Advancing

No. 7 Ana Ivanovic defeats No. 9 Ekaterina Makarova 7-5, 3-6, 6-1
No. 19 Elina Svitolina defeats No. 29 Alize Cornet 6-2, 7-6

Notes: Ivanovic advances to the quarterfinals at Roland Garros, something she hasn't done since 2008, when she won the tournament. ... Svitolina and Cornet played an extensive second-set tiebreaker, with Svitolina eventually winning on her sixth match point to advance. Svitolina and Ivanovic will now meet in the quarters, with Svitolina making her first-ever Grand Slam quarterfinal appearance.

Men's Seeds Advancing

No. 5 Kei Nishikori defeats Teymuraz Gabashvili 6-3, 6-4, 6-2
No. 8 Stan Wawrinka defeats No. 12 Gilles Simon 6-1, 6-4, 6-2

Notes: The extra day off proved beneficial for Nishikori as he surpassed Gabashvili in straight sets. He now becomes the first Japanese man in the Open Era to make quarterfinals at the French Open, and the second all-time. ... Wawrinka advances to the quarterfinals at Roland Garros for the second time in his career.

Men's Seeds Upset

No. 14 Jo-Wilfried Tsonga defeats No. 4 Tomas Berdych 6-3, 6-2, 6-7, 6-3

Notes: Tsonga-Berdych was a thrilling match, featuring a back-and-forth third-set tiebreaker. Tsonga's backhand was strong Sunday, with winners such as these dazzling the crowd. ... This is the first time Berdych has been out before the quarterfinals this year.

Men's Matches Ongoing

No. 2 Roger Federer tied with No. 13 Gael Monfils 6-3, 4-6

Notes: The match was suspended due to darkness and will continue Monday. ... Federer leads the all-time series 8-4, though Monfils has won their last two meetings.

Round 4 action was delayed two hours and 40 minutes due to rain. The matches between Maria Sharapova and Lucie Safarova and Garbine Muguruza and Flavia Pennetta were rescheduled for Monday.