A glance at the French Open, the year's second Grand Slam tennis tournament:
Site: Roland Garros in Paris.
Surface: Red clay.
Schedule: Main-draw play begins Sunday. The 15-day tournament closes with the women's singles final June 4, and the men's singles final June 5.
2015 Men's Singles Champion: Stan Wawrinka of Switzerland.
2015 Women's Singles Champion: Serena Williams of the United States.
Last Year: Wawrinka used his terrific one-handed backhand to upset Novak Djokovic 4-6, 6-4, 6-3, 6-4, thanks in large part to a 60-30 edge in winners, for his second Grand Slam title and first in Paris. It was Djokovic's third loss in the past four finals at Roland Garros, the only major tournament he hasn't won. Williams collected her third French Open trophy by beating Lucie Safarova 6-3, 6-7 (2), 6-2 to get halfway to a calendar-year Grand Slam. The two weeks were a struggle for Williams, who was dealing with an illness and four times came back to win after dropping the opening set of a match.
Key Statistic I: 21 - Consecutive Grand Slam matches won by Djokovic, including titles at Wimbledon and the U.S. Open in 2015, and the Australian Open in 2016.
Key Statistic II: 70-2 - Rafael Nadal's career record at Roland Garros, where he has won a record nine championships. The only losses came against Djokovic in the quarterfinals last year, and against Robin Soderling in the fourth round in 2009.
Key Statistic III: 21 - Grand Slam singles trophies earned by Williams, one shy of Steffi Graf's professional-era record.
Prize Money: Total is about 32 million euros (about $36 million), an increase of 4 million euros (about $4.5 million) from 2015, with 2 million euros (about $2.25 million) each for the men's and women's singles champions.