Russia's Maria Sharapova, who once held women's tennis No. 1 ranking, was suspended from tennis for two years on June 8, 2016, for testing positive for meldonium at the Australian Open, and immediately responded by saying she would appeal the decision to sport's highest court.
Major sponsors have distanced themselves from Sharapova who has been the highest-paid woman in sports for 11 years running.
Here's a look back at her five Grand Slam wins and other career highlights.
ABOVE: Sharapova poses in front of the Eiffel Tower with her trophy for winning the French Open on June 8, 2014.
Maria Sharapova carries the torch during the opening ceremony of the 2014 Winter Olympics in Sochi, Russia, on Feb. 7, 2014.
Although she has lived in the U.S. since childhood, Sharapova won a silver medal and served as Russia's flag-bearer at the London Olympics in 2012.
Maria Sharapova of Russia holds the trophy after defeating Sara Errani of Italy at the French Open in 2012.
Maria Sharapova poses at a premiere in Hollywood in 2008.
Sharapova is thought to be the world's highest-paid female athlete due to endorsement deals and her extensive business ventures, including a high-profile candy line, Sugarpova. Forbes estimated her earnings at $29.5 million for 2015.
Maria Sharapova holds the trophy after beating Serbia's Ana Ivanovic at the Australian Open in 2008.
Maria Sharapova reacts after defeating Justin Henin-Hardenne of Belgium to win the U.S. Open in New York in 2006.
17-year-old Maria Sharapova holds the winner's trophy after defeating Serena Williams at Wimbledon in 2004. Sharapova won 6-1, 6-4.