Holger Rune, the world No. 9 Danish tennis star, confirmed he remains in touch with tennis legend Andre Agassi following his second-round victory at the 2025 Cincinnati Open on August 9, 2025. In an interview with Tennis Channel, Rune revealed, “It’s still ongoing. We’re still chatting a little bit on the phone. He just messaged me also after my match, so it’s nice. He’s such a nice guy as I’ve said,” per tennisworldusa.org. This statement came after Rune’s hard-fought 7-5, 7-6(5) win over Roman Safiullin, marking his 50th ATP Masters 1000 victory and entry into the exclusive ‘Club 50’ alongside Carlos Alcaraz and Jannik Sinner, per @OptaAce.
Rune and Agassi’s collaboration began with a three-day training block in Washington, D.C., before the Mubadala Citi DC Open in July 2025, where Agassi provided tactical insights, particularly on Rune’s return game, per atptour.com. Rune clarified that Agassi is not his full-time coach but a mentor, offering advice remotely, including post-match messages after Rune’s Toronto quarterfinal loss to Alexei Popyrin and his Cincinnati win, per yardbarker.com. “We spoke a little bit after Toronto as well, what I can do better… small specific things that can make it easier for myself and play better,” Rune noted, praising Agassi’s attention to detail, such as recalling specific points others might overlook, per tennishead.net.
Agassi’s influence, combined with Rune’s hiring of Novak Djokovic’s former fitness coach Marco Panichi, aims to elevate his game after a 24-18 season marked by a Barcelona title but also a first-round Wimbledon exit, per tennisworldusa.org. Fans on X, like @GroundPasspod, noted Agassi’s continued involvement, with Rune confirming post-match contact on August 9, 2025. As Rune faces Alex Michelsen next in Cincinnati, aiming for a deep run to boost his US Open seeding, Agassi’s mentorship remains a key factor in his quest to rival Alcaraz and Sinner, per @TennisUpToDate2.