Sinner and Swiatek's doping scandals tarnish triumphs

IMAGE: Iga Swiatek dazzled with five titles that included her fourth French Open trophy. Photograph: Susan Mullane-USA TODAY Sport/Reuters Jannik Sinner and Iga Swiatek enjoyed a......

PICS: Sinner leads Italy to second straight Davis Cup crown

IMAGE: Italy's players celebrate with the Davis Cup after victory over the Netherlands in the final at Palacio de Deportes Jose Maria Martin Carpena Arena, Malaga, Spain, on Sunday. Photograph:......

Sinner sends holders Italy into Davis Cup final

IMAGE: Italy's Jannik Sinner stretches for a return during the Davis Cup semi-final against Australia's Alex De Minaur, at Palacio de Deportes Jose Maria Martin Carpena Arena, Malaga, Spain, on......

Sinner inspires Italy to Davis Cup semis vs Australia

IMAGE: Italy's Jannik Sinner and Matteo Berrettini celebrate winning their doubles match against Argentina's Maximo Gonzalez and Andres Molteni in the Davis Cup quarter-final at Palacio de......

Australia edge past US to reach Davis Cup semi-finals

IMAGE: Australia's Jordan Thompson and Matthew Ebden celebrate winning their doubles match against Ben Shelton and Tommy Paul of the United States in the Davis Cup quarter-finals at Palacio de......