BENGALURU - Holger Rune's talent and drive are undoubted but the Dane remains something of a rough diamond heading into the meat of the 2024 season while fellow young guns Carlos Alcaraz and Jannik Sinner have sparkled their way to major titles.

Observers of men's tennis have developed something of an obsession with promising young talent as the sport negotiates the twilight of a golden era dominated by Novak Djokovic, Roger Federer and Rafa Nadal.