- United Cup star Tomas Machac shouts at own team before abruptly retiring vs Taylor Fritz Express
- United Cup final: Poland to face United States in final BBC.com
- Tennis: Gauff, Swiatek on collision course for United Cup glory Vanguard
- USA through to final after Czech suddenly quits match MSN
- US makes United Cup final after Macháč outburst, Opelka advances in Brisbane ABC News
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