The 15 female athletes who dominated Instagram in 2016

She's tough, she's beautiful, and she can kick your ass. Ronda Rousey (@RondaRousey) is the most popular female athlete on Instagram with 8.8 million followers, and after losing in a stunning knockout against Holly Holm in 2015, she's set to fight for her bantamweight title belt at UFC 207.

Nikki Bella has amassed 5 million followers on Instagram after breaking out (alongside her twin sister Brie) as one half of the The Bella Twins in the WWE.

As one of the most popular and successful athletes of all time, Serena Williams has an impressive 4.8 million followers on Instagram. The tennis legend has won every Grand Slam in tennis and she's still playing at a high level after being in the sport for over a decade.

Alex Morgan has built up 4.3 million followers and is the most popular player on Instagram among the United States Women's Soccer Team. She's won a gold medal, a FIFA World Cup title, and scored two goals during the 2016 Rio Olympics.

Just like her sister Nikki, Brie Bella has amassed a big following on Instagram with 4.3 million fans.

Paige, a.k.a. Saraya-Jade Bevis, has attracted 3.5 million followers on Instagram. The British wrestler is a two-time Divas Champion and was the youngest women's champ in the history of the WWE.

Natalie Eva Marie has amassed 3.5 million followers with her entertaining work in the WWE. (She's also a huge San Francisco Giants fan, for the record.)

Winning those gold medals might have helped Simone Biles build up 3.4 million followers—she was one of the biggest stars and stories at the 2016 Summer Olympics.

Sania Mirza is one of the best tennis players in the world—she's ranked number 1 in doubles—and she has 2.4 million followers on Instagram.

The Canadian-born wrestling star has put together 2.3 million followers on Instagram and has been part of the Total Divas TV series.

Aly Raisman had an amazing performance at the 2016 Olympics, winning a gold medal in the team event—no wonder she has 2.2 million followers on Instagram.

As one of the most popular tennis stars in the world, the Russian beauty has won herself a huge fanbase, with 2.2 million followers on Instagram.

After becoming a breakout star in the 2012 Olympics by winning gold medals in the individual all-around and team competitions, Douglas came back in 2016 and won gold in the team competition in Rio, something she shared with her 1.9 million followers on Instagram.

The professional surfer and model has 1.8 million followers on Instagram, a fitting following for one of the most decorated surfers of all time.

Laurie Hernandez broke out alongside the "Final Five" at the 2016 Summer Olympics, winning gold in the team event and silver on the balance beam team in gymnastics. Her turn on Dancing With the Stars—spoiler alert: she won—helped improve her status even more, as she shared in the fun with her 1.6 million followers on Instagram.