Elena Dementieva
Russian tennis player Elena Dementieva had a rather strong pedigree upon becoming a professional. She won the singles Gold medal in the 2008 Olympics (which came after winning the Silver in 2000). From there, Dementieva nabbed 16 singles titles. Everything was on the up-and-up for Dementieva. However, she was ready to leave the sport at a rather young age.
After losing a 2010 match in the Tour Championships, Dementieva officially announced her retirement on the court. Despite being an elite player during this time, she left the game at the age of 29. Since then, Dementieva got married to professional hockey player Maxim Afinogenov, and gave birth to a daughter.
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