Overview

• Rune retired against Ugo Humbert while leading 6-4, 2-2 in the ATP 250 Stockholm semifinal, sending the Frenchman into the final.
• Tournament medical studies and his mother-agent confirmed a full rupture of the left Achilles tendon, and Rune posted that his heel is "completely torn."
• The injury ends his 2025 season, with rehabilitation commonly estimated at roughly three to six months.
• Players including Jack Draper, Taylor Fritz and Casper Ruud used the incident to press for a review of the ATP calendar's physical demands.
• The 22-year-old Dane, ranked No. 11, faces an uncertain early-2026 schedule that is likely to be limited by recovery.