Andy Murray had to dig deep to ensure Great Britain made a winning start in their Davis Cup round-robin tie against Switzerland in Manchester.With Britain aiming for a place in November's eight-team knockout stage, Murray edged past Swiss debutant Leandro Riedi 6-7 (7-9) 6-4 6-4.Cameron Norrie can seal victory by beating Stan Wawrinka later on Friday.If Norrie loses, Dan Evans…

Two-time Grand Slam champion Simona Halep has been banned for four years for breaches of the Tennis Anti-Doping Programme.An independent tribunal determined the 31-year-old Romanian had committed "intentional" anti-doping violations.Halep has always denied knowingly taking the banned substance Roxadustat.She faced two charges: one for testing positive for Roxadustat and another for irregularities in her athlete biological passport.The written reasons behind…

Australia bounced back from Wednesday's Davis Cup defeat by Great Britain to come from behind and beat France 2-1.But Alex de Minaur beat Ugo Humbert 7-6 (7-2) 6-3 before Purcell and Matt Ebden won the deciding doubles rubber 7-5 6-3 for last year's runners-up.That kept alive Australia's hopes of qualifying from Group B for the quarter-finals in Malaga in November.Great…

Great Britain's bid to reach the Davis Cup Finals knockout stage started with a superb 2-1 victory over Australia as debutant Jack Draper and Dan Evans both won their singles matches.In the first of a best-of-three-match tie, Draper won 6-7 (6-8) 6-3 7-6 (7-4) against Thanasi Kokkinakis.Evans beat Alex de Minaur, ranked 12th in the world, 6-1 2-6 6-4 in…