Tsitsipas vs Mochizuki, Sakkari vs Osaka, Munar vs Baez, & More | United Cup 2026 Highlights Day 1

Tennis is so BACK 🙌 The 2026 season opens in Perth with the United Cup as Spain clash with Argentina, and Greece meet debutants Japan.SUBSCRIBE to our channel for the best ATP tennis videos and tennis highlights: https://www.youtube.com/tennistv?sub_confirmation=1 - Watch live tennis streams from every ATP tournament: http://tnn.is/YouTube - Download the Tennis TV app now: https://tnn.is/app-yt Tennis TV is the OFFI...