Sinner ATP Finals favourite after brilliant and controversial year

Italian Sinner arrives in Turin at the end of a sensational season in which he was victorious at the Australian and US Opens -- his first Grand Slam triumphs -- and won five more ATP titles. The 23-year-old is seeking a first ever title at the season-ending tournament in Turin and has come a long way since losing last year's final to Novak Djokovic, pushing on to become world number one and a national hero. Sinner is the first ever Italian to top the men's world rankings and ended his country's 48-year men's Slam title drought...