The 2026 United Cup is underway with teams from various countries competing across Perth and Sydney from January 2 to 11. The tournament features mixed-team events with notable players such as Coco Gauff, Taylor Fritz, Naomi Osaka, Belinda Bencic, and Stefanos Tsitsipas. Team USA, led by captain Michael Russell, includes Gauff, Fritz, Mackenzie McDonald, and Nicole Melichar-Martinez. Other prominent teams include Spain, Argentina, Italy, France, Switzerland, Great Britain, Greece, Japan, Canada, Belgium, China, Australia, Czechia, Norway, Germany, Poland, and the Netherlands, each with their own lineups of top-ranked players. Day 1 saw surprising results, with Argentina defeating Spain and Greece beating Japan, defying expectations. Day 2 features key matches such as Gauff versus Solana Sierra of Argentina, Bencic versus Leolia Jeanjean of France, and a notable singles clash between Alex de Minaur and Casper Ruud. The tournament also includes exciting doubles matches, with players like Maya Joint, Elise Mertens, and others competing in Perth and Sydney. Highlights include Stan Wawrinka sealing Switzerland’s victory over France, Zhang Zhizhen leading China past Belgium, and Zhang Zhizhen overcoming a shoulder injury. The event is seen as a season opener filled with potential surprises, as players like Naomi Osaka and Belinda Bencic aim to build on their 2025 success. The United Cup is also a platform for players to showcase their form early in the season, with many eyes on how the tournament will shape the 2026 tennis calendar.