This year's French Open is a "land of opportunity" with no Grand Slam champions left among the women's draw, says Lindsay Davenport.
For the first time since 1977, the quarter-final line-up in Paris is devoid of any player to have won a major title.
Simona Halep, Karolina Pliskova and Caroline Wozniacki are the only players to have reached a Grand Slam final.
"It is wide open," said Davenport, a three-time major winner.
The women's draw is missing 30 Grand Slam titles with the absence of Serena Williams, awaiting the birth of her first child, Victoria Azarenka, who returns at Wimbledon following the birth of her son, and Maria Sharapova, who did not get a wildcard after her doping ban.