American gymnast Simone Biles, Japanese tennis player Naomi Osaka and Portuguese footballer Cristiano Ronaldo have been named among the top ten most marketable athletes in the world.

Media company SportsPro, in partnership with digital media monetisation company Greenfly and digital measurement platform Zoomph, have listed the 50 most marketable athletes around.

According to Zoomph's director of strategic initiatives and business intelligence Scott Lewis, the list is not only based on the frequency, reach and engagement of social media posts from the athletes, but also the demographic makeup and consumer affinities of their audience.

Zoomph analysed more than 7,000 athletes active in 2021 on at least three of the four major social platforms – Facebook, Twitter, Instagram and TikTok – between January and July 2021.

Remarkably, female athletes take up the top three spots, five of the top 10, and 38 percent of the top 50.

Without further ado, here are the top 10 most marketable athletes, according to SportsPro.

10) Alex Morgan

US footballer Alex Morgan makes the top 10 with an influencer score of 171. The forward currently plays for NWSL side Orlando Pride, having enjoyed a short stint at English club Tottenham Hotspur last year.

The 32-year-old has enjoyed a highly-successful career so far, winning the Women’s Champions League with Lyon in 2017. She also has two World Cup titles and an Olympic gold medal to her name.

Alex Morgan is number 10 in SportsPro's list of the most marketable athletes in the world