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Most influential women in sports

Photos Logo Photos | Slide 2 of 35: PARIS, FRANCE - JUNE 04: Serena Williams of the United States celebrates a point during her Women's Semi final match against Timea Bacsinszky of Switzerland on day twelve of the 2015 French Open at Roland Garros on June 4, 2015 in Paris, France.

Serena Williams — Tennis (USA)

The 23-time Grand Slam champion is ranked No. 1 in women's singles tennis. She is regarded as one of the greatest sportswomen of all time and was named the Sportsperson of the Year by Sports Illustrated in 2015.

© Karwai Tang/WireImage; Minas Panagiotakis/Getty Images; Jerome Miron/USA TODAY Sports
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