Moscow: Former world number one Dinara Safina has retired from professional tennis, her elder brother Marat told media on Friday.
"Dinara (Safina) has decided to end her career," Safin said. "She has taken the decision relatively well. She considers it just to be the end of a period in her life."
Safin said the main reason for his 25-year-old sister's retirement was a chronic back injury.