'I'm saying goodbye': Maria Sharapova quits tennis after glittering and controversial career

Former world No.1 Maria Sharapova has revealed she is quitting tennis. The five-time grand slam champion - who won Wimbledon in 2004 as a 17-year-old - has struggled with chronic shoulder problems and has slumped to 373 in the rankings. She was banned from tennis in 2016, initially for two years, after a positive...