Sharapova became the world No. 1 for the first time on August 22, 2005, at the age of 18, and last held the ranking for the fifth time for four weeks from June 11, 2012, to July 8, 2012. Her 35 singles titles and five Grand Slam titles—two at the French Open and one each at the Australian Open, Wimbledon, and US Open—rank third among active players, behind Serena and Venus Williams. She won the year-ending WTA Finals in her debut in 2004. She has also won three doubles titles.
Despite an injury-prone career, Sharapova has achieved a rare level of longevity in the women’s game. She has won at least one singles title a year from 2003 until 2015, a streak only bested by Steffi Graf, Martina Navratilova, and Chris Evert. Several tennis pundits and former players have called Sharapova one of tennis’s best competitors, with John McEnroe calling her one of the best the sport has ever seen.
Sharapova has been featured in a number of modeling assignments, including a feature in the Sports Illustrated Swimsuit Issue. She appeared in many advertisements, including those for Nike, Prince, and Canon, being the face of several fashion houses, most notably Cole Haan. Since February 2007, she has been a United Nations Development Programme Goodwill Ambassador, concerned specifically with the Chernobyl Recovery and Development Programme. In June 2011, she was named one of the "30 Legends of Women's Tennis: Past, Present and Future" by Time and in March 2012 was named one of the "100 Greatest of All Time" by Tennis Channel.