The decision by the tennis' main tours is in response to Wimbledon banning Russian and Belarusian players following the Russia's offensive in Ukraine.
The grasscourt Grand Slam is the first tennis tournament to ban individual competitors from the two countries, drawing a sharp reaction from the world number one player.
In a video, Peng said "people have many misunderstandings" about a post alleging sexual assault on social media site Weibo, which had been quickly removed, but WTA remains unconvinced.
Beijing has not addressed the issue in any credible way after Peng Shuai accused a former government official of sexual assault, the Women's Tennis Association said.
Women's Tennis Association, WTA, calls for a full, fair and transparent investigation, without censorship, into Peng Shuai's allegation of sexual assault.
Chinese state media have released videos of Peng Shuai, whose whereabouts have been a matter of international concern for weeks, showing the tennis star appearing at a junior tournament in Beijing.
Spain’s Garbine Muguruza beat Estonia’s Anett Kontaveit 6-3, 7-5 to win the WTA Finals title for the first time in her career.
Czech third seed Karolina Pliskova has beaten Garbine Muguruza in her opening match while Anett Kontaveit extended her hot streak to 11 consecutive victories with a win over second-seeded Barbora Krejcikova.
Officials gave no reason for the world no 1's decision to pull out of WTA India Wells singles’ draw, which was already suffering from the absence of several top-ranked players, including Naomi Osaka and Serena Williams.
Medvedev will face fellow Russian Andrey Rublev in Saturday's semifinals after beating Pablo Carreno Busta.
The expectation that is placed on athletes - and many others in the public eye - is that they are a commodity. Naomi Osaka’s stand should help us challenge that.
Electronic line calling technology was also deployed at the Australian Open, a move largely welcomed by players.
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