Born in Ukraine and raised in Scotland, Elena Baltacha was British number one periodically between 2002 and 2012.Widely known by her nickname Bally, she reached a career high world ranking of 49 in September 2010 and became a familiar face at Wimbledon.In 2010 Elena Baltacha, seen here with her Federation Cup team-mate Anne Keothavongmet, met the Queen at Wimbeldon.Elena made her Federation Cup debut for Great Britain in 2002. The Federation Cup is the premier team competition in women's tennis.She had a career troubled by illness and retired from the sport late last year. Current British number one Laura Robson paid tribute to her friend and team-mate on social media. She said: "Impossibly sad. Forever a teammate. Sweet dreams Bally."Elena became part of Judy Murray’s promising group of young Scottish players, which also includes Judy's own sons Andy and Jamie.But Elena had a career troubled by illness and retired from the sport late last year.