Jannik Sinner’s quest for tennis immortality is heating up, especially with his rival Carlitos facing some serious turbulence after splitting with coach Ferrero. The Italian’s looking like the man to beat Down Under, but former Brit No. 1 Greg Rusedski isn’t buying the calendar Slam hype just yet. Even if Sinner bags another Aussie Open, can he really sweep all four majors in 2026? The Alcaraz-Sinner rivalry could define the era, but the Slam sweep remains tennis’ ultimate Everest. #Sports #Tennis #Sinner