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 sets up ATP Finals decider with Fritz

Taylor Fritz is the first American since 2006 to reach the title match at the ATP Finals, winning a slugfest against world No. 2 Alexander Zverev. IMAGE: Jannik Sinner outclassed Norway's Casper......

Zverev wins Paris Masters, Swiatek survives Krejcikova

IMAGE: Germany's Alexander Zverev celebrates with the trophy after winning his men's single's final match against France's Ugo Humbert. Photograph: Stephanie Lecocq/Reuters Third seed Alexander......

Bollipalli-Khade wins first ATP title, Nagal loses in Basel

IMAGE: Rithvik Choudhary Bollipalli and Arjun Khade pose with the Almaty Open Men's Doubles trophy. Photograph: Kazakhstan Tennis / X India's Sumit Nagal crashed out in the second round of......

Sinner first Italian to finish the year as World No 1

Sinner advances to Shanghai semi-final IMAGE: Jannik Sinner celebrates after winning his semi final-match against Czech Republic's Tomas Machac at the Shanghai Masters on Saturday. Photograph:......