Nick Kyrgios, the in-form world number 16, stands in the way of the USA team, all of whom are ranked in the top 30 in singles.
Delray Beach Open: Juan Martin del Potro gets 2017 campaign off on winning note, Bernard Tomic ousted
Former US Open champ Juan Martin Del Potro got his season off to another successful start at the Delray Beach Open, winning in straight sets and overcoming an opening set tumble in the process.
Here's a look at some of the stories that you may have missed on Day 1 from the Australian Open at Melbourne Park.
David Ferrer dashed local hopes when he downed Bernard Tomic in the Brisbane International, while Gabrine Muguruza added to the misery by beating Sam Stosur.
Davis Cup: Nick Kyrgios, Bernard Tomic complete straight set wins to give Australia 2-0 lead over Slovakia
Nick Kyrgios and Bernard Tomic claimed straight set victories to give Australia a commanding 2-0 lead over Slovakia in the Davis Cup World Group playoff.
Nick Kyrgios says he's confident of being fit to lead Australia into its Davis Cup tie against Slovakia in Sydney starting Friday.
Nick Kyrgios and Bernard Tomic were included in Australia's Davis Cup team to face Slovakia in a must-win tie to secure their place in the World Group next year.
Fiery Australian Nick Kyrgios was at the centre of a new Wimbledon row on Sunday when he was heard labelling one of his own support team as "retarded".
Here's what everyone had to say about Sam Querry stunning Novak Djokovic at Wimbledon.
Controversial Australian tennis player Bernard Tomic apologised on Thursday after he used the word "retard" in a Wimbledon press conference.
Rafael Nadal faces a battle to qualify for the Rio Olympics after the International Tennis Federation announced the entry list Thursday for the 2016 Games.
Controversial Australian Bernard Tomic was ordered to apologise on Thursday after he used the word "retard" in a Wimbledon press conference.
'If you don't want to pick two best players, so be it': Kyrgios hits back at Australian Olympic chief's threat
Nick Kyrgios has hit back amid threats his behaviour and on-court demeanour could cost him a place in the Australian squad for the Rio Olympics.
Novak Djokovic and Andy Murray sprinted through their Davis Cup openers to edge Serbia and defending champions Great Britain closer to a dream quarter-final showdown.