Overview
- Poland defeated host Australia 2-1 in Sydney, with Jan Zielinski and Katarzyna Kawa clinching the mixed doubles 6-4, 6-0 after the singles were split.
- Iga Swiatek beat Maya Joint 6-1, 6-1 to put Poland ahead before Alex de Minaur leveled the tie by overcoming Hubert Hurkacz 6-4, 4-6, 6-4.
- Australia captain Lleyton Hewitt said he rested de Minaur from the deciding doubles to manage workload ahead of the Australian Open.
- The United States, defending champions, meet Poland in a semifinal featuring scheduled singles matchups of Coco Gauff vs Iga Swiatek and Taylor Fritz vs Hubert Hurkacz.
- Switzerland advanced to its first United Cup final by edging Belgium 2-1, as Belinda Bencic defeated Elise Mertens and later paired with Jakub Paul to win the deciding mixed doubles 6-3, 0-6, 10-5.