Jannik Sinner and Holger Rune will rematch.
6-6 3-6 The world number seven ended up winning 7–6, and he also had to deduct up to two match points from the Bulgarian. Rune, who had to defeat Sumit Nagal of India earlier in the day, spent only five hours on the court on Thursday and is expected to be more exhausted than Sinner, who took slightly more than an hour and a quarter to fold Struff.
One year from now, Friday will be Sinner’s chance to exact his retribution. Indeed, Rune emerged victorious in the semifinal of the Principality’s Masters 1000 last year, defeating the Italian in a thrilling third set (1-6 7-5 7-5). The Danes won 2-1 according to the prior totals, and they also prevailed in the Sofia semifinals in 2022. The sole victory Jannik ever had came in the most recent ATP Finals round.