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.

Luiten leads the way at DP World Tour Championship
Jake Paul hails Dubai as "perfect place" for Christmas Eve comeback fight
Derron and Taylor-Brown renew T100 title fight in Dubai
Racing Bulls confirm Lawson and Lindblad for 2027
Manchester United sack Carrick, talks ongoing for Pochettino
