Aryna Sabalenka will make her debut in the doubles format at the US Open 2026, alongside Novak Djokovic. 🤩These teams have officially entered into the 2026 US Open Mixed Doubles Championship presented by Vital Proteins. Also Read: Why are Jannik Sinner & Carlos Alcaraz not included in US Open 2026 mixed doubles draw? Mixed doubles teams to look forward to at US Open 20265. The Serbian made his mixed doubles appearance last year alongside fellow Serbian Olga Danilović, but they lost in the first round.