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As Rafael Nadal leapt into Roger Federer's arms at the conclusion of the inaugural Laver Cup on Sunday night, you could almost hear the clinking of champagne glasses by the tournament's organisers.

Nadal and Federer embracing after the Swiss had thrillingly defeated Nick Kyrgios to secure the Laver Cup for Team Europe became the defining image of a weekend full of memorable moments that gripped the tennis world.

Let's just hope that it was being watched by the beleaguered International Tennis Federation (ITF), whose Davis Cup competition increasingly feels like an analogue event in a digital age.

The Laver Cup - which pitted Team Europe against Team World in a tennis version of the Ryder Cup - cannot match the Davis Cup's 117-year history or the honour of representing one's country, but its experimentation gave an insight into what excites tennis fans and, just as importantly, players.

First of all, having stellar names sells. Tennis's 'Big Four' have largely skipped the Davis Cup over the last decade, with matches involving two of Nadal, Federer, Novak Djokovic and Andy Murray becoming as rare as a moment of Maria Sharapova humility. Only twice in the competition's history have two of the four met in the Davis Cup - most recently in 2009, with its unforgiving schedule turning off the majority of tennis's superstars.