NEW YORK – Jannik Sinner won his second Grand Slam title of 2024 on Sunday when he swept aside Taylor Fritz in the US Open final, shattering American hopes of a first male champion at the majors in 21 years.World number one Sinner, who won his maiden Slam at the Australian Open in January, became the first Italian man to triumph in New York with a 6-3, 6-4, 7-5 victory.For 23-year-old Sinner, it was a 55th match win of the season and sixth title.After his 21-year-old rival Carlos Alcaraz pocketed the French Open and Wimbledon titles to take his majors collection to four, the two men have…