The top 11 highest-earning female sport athletes over the past year are all tennis players.
Serena Williams, 37, a 23-time Grand Slam winner, tops the rich list, after earning $29.2m (£24.3m), including $25m (£20.57m) in endorsements, according to Forbes.
Japan's Naomi Osaka, who beat Williams in the US Open final, is second.
US World Cup-winning striker Alex Morgan is the first non-tennis player at 12 after earning $5.8m (£4.77m).
Germany's Angelique Kerber, 31, completes the top three despite slipping to 13th in the world rankings while current Wimbledon champion Simona Halep, 27, is fourth.