Nick Kyrgios has led the World team to its only success on the opening day of the Laver Cup, teaming with American Jack Sock to beat Europe's Rafael Nadal and Tomas Berdych.

• Caden Helmers

Canberra tennis star Nick Kyrgios is in the frame for a Davis Cup homecoming.

• Christopher Clarey

In the back seat of a new van in an old city, a stubble-faced Rafael Nadal was laughing hard on my right and a stubble-faced Roger Federer was laughing harder on my left.

Australia will kick off their 2018 Davis Cup campaign by hosting Germany in February, which could see a battle between young guns Nick Kyrgios and Alexander Zverev take centre stage.

• Peter FitzSimons
• Peter FitzSimons

We see good sportspeople go bad, and become great because of whether or not they give a f---.

• Caden Helmers

Nick Kyrgios and Lleyton Hewitt will be the men to eventually spearhead Australia to the Davis Cup.

• UPDATED

Australia has blown a 2-1 semi-final lead to crash out of the Davis Cup.

• Ian McCullough

​Lleyton Hewitt has backed Nick Kyrgios to get the job done for Australia in his Davis Cup reverse singles rubber against Belgian No.1 David Goffin.

• Ian McCullough

Australia are just one win away from a place in the Davis Cup final after an easy doubles rubber win.

• Ian McCullough

Nick Kyrgios has fought back to keep Australia's Davis Cup hopes alive against Belgium.

Nick Kyrgios says Bernard Tomic has "lost his way" and that it's unfair to lump him in the same category as Australia's fallen tennis star.

​John Millman has vowed to reward the faith shown in him by Lleyton Hewitt by getting Australia off to a flying start in the Davis Cup semi-final against Belgium.

• Ian McCullough

Australia captain Lleyton Hewitt has sensationally axed Thanasi Kokkinakis from the Davis Cup semi-final against Belgium.

• Scott Spits

It's hard to argue that this year's win over the United States was Australia's greatest Davis Cup moment since winning the trophy outright in 2003. Now Lleyton Hewitt's team has the chance to out-strip that achievement by edging past Belgium in the semis.

• Jon Pierik

Twitter has reaffirmed its interest in the AFL, as league bosses begin to cast an eye towards the next round of broadcast rights which could involve media behemoth Amazon.

• Ian McCullough

Davis Cup great Lleyton Hewitt claims he's never been around a more united team than the Australian side he'll captain against Belgium in this weekend's semi- final in Brussels.

Nick Kyrgios has revealed his plans to "run through a brick wall" for Lleyton Hewitt to ensure Australia reaches its first Davis Cup final in 14 years.

• Ben Rotherberg

Maria Sharapova's first significant breakthrough in professional tennis was her victory over Serena Williams in the 2004 Wimbledon final. In the years since then, the rivalry has been one-sided; Williams has won their last 18 matches.

• UPDATED

A relentless Rafael Nadal thumped Kevin Anderson 6-3, 6-3, 6-4 to win the US Open on Monday, earning the Spaniard his second grand slam title of the season and 16th of his career.

He's been Australia's best Davis Cup performer since Lleyton Hewitt, but Bernard Tomic is now "a long way off" a national recall after losing control in 2017.

New York: Sloane Stephens beat Madison Keys 6-3, 6-0 in an all-American US Open final to claim her maiden grand slam title on Saturday.

• Simon Briggs

​Kevin Anderson feels like he has been hiding in plain sight throughout his tennis career. Despite collecting three ATP titles, and prize money in excess of $9 million, he is one of the lowest-profile 6ft 8in behemoths in professional sport.

• Simon Briggs

This US Open has thrown up some bizarre storylines, but the women's final on Saturday night (local time) - which brings together two young American talents in Sloane Stephens and Madison Keys - surely tops the lot.

• David Waldstein

With all the chaos in the men's draw at this year's U.S. Open, some semblance of order was maintained when top-seeded Rafael Nadal reached the final.

Kevin Anderson will play for his first Grand Slam title after he beat Pablo Carreno Busta in four sets in their US Open semi-final on Friday.

Rafael Nadal is just one win away from a 16th Grand Slam title after he beat Juan Martin del Potro in their US Open semi-final on Friday.

​Two points from defeat against Venus Williams at the US Open, Sloane Stephens summoned her best strokes when she needed them the most to reach a Grand Slam final for the first time.

• Darren Kane

Roger Federer does what he does in a way that is altogether rather spellbinding.

Fabio Fognini has apologised for insulting a chair umpire at the US Open and says he is prepared to discuss his mistake with schoolchildren as a lesson.