The Final Four arrive in Sydney for the United Cup semifinals: Team Poland v Team USA and Team Greece v Team Italy, World No.3 Jess Pegula previews her tantalising match-up with World No.1 Iga Swiatek, Italian pair Martina Trevisan and Lorenzo Musetti share their delight at sneaking into the finals, the quirkiest moments from the past week's media conferences, and Simon Rea from the Game Insight Group unveils the return-of-serve stats being introduced to the coverage of the Australian summer of tennis.

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