She turned pro in 2010 at the age of 17 and had her breakthrough in 2013 when she defeated Serena Williams at the Australian Open.
Stephens has won 8 WTA singles titles, including her first Grand Slam title at the 2017 US Open where she defeated Madison Keys in straight sets.
She earns most of her income from prize money and lucrative endorsement deals with brands like Nike, Rolex, Mercedes Benz, and Under Armor worth over $3 million combined.
Stephens also owns residential properties in Florida and New York City and has investments in startups and companies through her foundation.
At only 27 years old, Stephens' wealth is expected to continue growing as she remains a threat to win more Grand Slam titles and sign new endorsement deals.
While Roger Federer is the richest male tennis player with a net worth of $550 million, Serena Williams is the richest female tennis player worth $300 million.
Currently single, Stephens focuses her full attention on her tennis career, saying she's "married to her job".
Stephens serves as an inspiration to young women by demonstrating how hard work, talent and financial savvy can lead to prosperity in sports.