Alexander Zverev’s troubled start as world No 1 sums up dismal year for men’s tennis | Tumaini Carayol

Winning his first two grand slams and leading the rankings should be cause for celebration, but the German benefited from a vacuum at the topAlexander Zverev had plenty of thoughts in the miserable aftermath of his loss at the Paris Masters last week, a 7-6 (5), 6-2 second-round defeat by Lorenzo Musetti marking him as the first ATP No 1…