#2 Angelique Kerber
Kerber produced a string of disappointing performances this year and was lucky enough to regain the No.1 due to Serena Williams pulling out of the tour owing to pregnancy. Expectations weren’t all that high, but Kerber was deemed good enough to reach the quarter-finals.
In the first round, Kerber was up against former Grand Slam semi-finalist Ekaterina Makarova. The match turned out to be completely one-sided as the Russian outplayed the top seed to take the match 6-2, 6-2, thus winning her fifth match against Kerber.
Kerber thus became the first top seed to be eliminated in the first round of the French Open in the Open Era and will lose her No.1 ranking provided Karolina Pliskova reaches the final. Makarova was eventually defeated by Lesia Tsurenko in the second round by the same scoreline with which she beat Kerber.
Venus Williams and Father Richard recall one match that 7-time Grand Slam champion "should have won"