Kerber officially takes over at the top

The WTA updated its official rankings on Monday, confirming what we already knew: US Open champion Angelique Kerber is the new World No 1 in the women's game.

At 28, Kerber is the oldest player ever to debut at No 1, ending Serena Williams' record-tying run of 186 consecutive weeks in the top spot in the process.

Kerber did not need to win the US Open title, as her rise was assured when Williams lost in the semifinals, but she did it anyway with a three-set victory over Karolina Pliskova.

It's her second Grand Slam title of the season, after she beat Williams in the final of the Australian Open back in January.

She also becomes the first German to be ranked No 1 since the great Steffi Graf, who has long been a mentor and idol of hers.

"For sure, when I was growing up, Steffi was my idol," Kerber said, "and this is also special that she is German. She did a lot for German tennis, as well. And now, to be the next after her, to be a German No. 1 and win Grand Slams, this is, for me, really important."

Williams now occupies second place in the rankings, followed by French Open champion Garbine Muguruza at No 3, Agnieszka Radwanska at No 4, Simona Halep at No 5, and Pliskova at a career-best sixth. 

Despite his final defeat to Stan Wawrinka, Novak Djokovic retained his top spot in the men's rankings, while Wimbledon champion Andy Murray also hung on to second spot ahead of the new Swiss champion, who comes in at No 3.

Rafael Nadal rose one place to fourth, as did Kei Nishikori, who ascended from sixth to fifth.