Novak Djokovic has the chance to equal Pete Sampras' all-time record of ending the year as world number one on six occasions, if he wins two games.
Kiki Bertens defeated world number one Ashleigh Barty 3-6, 6-3, 6-4 in just over two hours at the WTA Finals.
Karolina Pliskova, who recently won the Zhengzhou Open, closed the gap at the top on world number one Ashleigh Barty, in the latest WTA rankings.
Bajrang Punia, who is the world number one, have been given the top billing in the men's 65kg freestyle category at the World Championships.
Ashleigh Barty was shocked by Alison Riske after winning the first set in the fourth round at Wimbledon.
Naomi Osaka, who recently lost her No.1 rank to Ashleigh Barty, feels fresh and determined after a rather disappointing clay court season.
Ashleigh Barty won the Birmingham Classic to become the new world number one in the WTA rankings.
Ashleigh Barty defeated Barbora Strycova in the Birmingham semi-finals in straight sets to advance to her third final of the season
Ashleigh Barty defeated Venus Williams in straight sets to reach the semi-finals of the Birmingham Classic and is now within two matches of becoming world number one.
Novak Djokovic's return to the world number one spot, just five months after slumping to his lowest ranking in 12 years, leaves little doubt that he is one of the sport's greats.
Novak Djokovic said he was proud of his "most amazing last five months" despite losing to Karen Khachanov in Sunday's Paris Masters final ahead of his return to world number one.
Sania, despite seeing roadblocks of every nature and size during her ascent, has hoisted the Tricolour on top.
Also, Mahan doesn't believe Tiger Woods has to win a major to validate his return to No. 1 in the world.
"It's been a great year for our squad, and to be honest I still don't think that I am the best batsman in our team," the world number one in both Tests and ODIs said.
The 30-year-old has not played since losing to Andy Roddick at the Sony Ericsson Open at the end of March.
Donald needed to finish eighth or better to retain his number one ranking, but the Englishman tied for 37th.
Philander's stunning rise also continued, as he jumped to fifth in ICC's latest Test rankings.
The only change in the men's top 10 is at No. 10, where Juan Martin del Potro replaces Nicolas Almagro.
Azarenka moved from No. 3 to No. 1, overhauling Petra Kvitova, who will remain at No. 2.
Azarenka won her first-ever Grand Slam, as well as took over the top ranking.