World number 1 Angelique kerber was shown the door by Russian Ekaterina Makarova in the opening round at Roland-Garros on Sunday Also a first-round casualty here last year when she wasn’t ranked No 1, Kerber could now lose her ranking crown to either Karolina Pliskova or Simona Halep.
Olympic champion Monica Puig advanced 6-3 3-6 6-2 over Italian 31st seed Roberta Vinci, while Swiss 30th seed Timea Bacsinszky thumped Spain’s Sara Sorribes Tormo 6-1 6-1.
A former semi-finalist in Paris, Bacsinszky next plays American Madison Brengle, a 1-6 6-3 13-11 victor over German Julia Georges.
And in a record 20th appearance at Roland Garros, Venus Williams has eased into the second round with a straight sets victory over Qiang Wang of China.
Svetlana Kuznetsova struggled to keep up with the score at the end of her first-round victory over Christina McHale.
Eighth-seeded Kuznetsova, who won the tournament in 2009, triumphed 7-5 6-4 but had to check the score with the umpire toward the end.