 
                                    Roger Federer and Alexander Zverev have won their Laver Cup doubles match.
The duo's straight sets victory over Jack Sock and Denis Shapovalov results in Team Europe leading Team World 3-1 after day one in Switzerland.
Earlier on the opening day Shapovalov went down to Dominic Thiem.
Meanwhile, Greece's Stefanos Tsitsipas easily triumphed over American Taylor Fritz.
 
                                 
                                        
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            Chelsea's Maresca fumes over 'stupid, embarrassing' Delap red card
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            Liverpool thrashed by Palace, holders Newcastle through in League Cup
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            Vacherot beats cousin Rinderknech at Masters again in Paris
         South Africa humble England to reach ICC Women's World Cup final
            South Africa humble England to reach ICC Women's World Cup final
         
                             
                             
                             
                                    