Simona Halep continues at World #2 in the rankings after losing a tight 3-set match to Sharapova in the quarterfinals of the Cincinnati tournament despite being up a break in the last two sets.
2-time major champion Victoria Azarenka plummeted to World #17 in the rankings after failing to defend her championship points in Cincinnati. She's trying to get her game back after being off the tour for several months with an injury.
Tomas Berdych's slump continues, although being at World #7 in the rankings is still an impressive achievement.
Rafael Nadal's withdrawal yesterday from the US Open means that he will lose the 2000 points from his 2013 win, but in order for Roger Federer to leapfrog his arch-nemesis and reach World #2 immediately the 17-time major champion would need to win his record 18th major in New York.