Canberra teenager Kyrgios will take on world No.4 David Ferrer when he begins his US Open campaign in New York on Tuesday.

Kyrgios is the youngest player in the tournament.

It's his second grand slam appearance of the year after he made the second round at the French Open in May where he claimed the scalp of former world No.8 Radek Stepanek.

But his clash with Ferrer poses the biggest challenge of his booming career.

A quick glance at the statistics reveals Ferrer - the No.4 seed for the tournament - has won almost $20 million in his career. He has won $2.8 million this year.

Kyrgios, 18, has $77,000 in the bank in his first year, matching it with the best players in the world.

Their rankings are at opposite ends - Kyrgios is 201 places behind Ferrer - but the rising star is riding high and has already smashed his goal of breaking into the world's top 300 this year.

''I've got a really good team around me, some of the best people in the world,'' Kyrgios said.

''We're all progressing together and I'm pretty excited for the next couple of days.

''I was fortunate to get a win in the main draw [at the French Open] and that feeling is indescribable. I'm excited to have another opportunity.

''It's an overwhelming feeling, I saw Todd Woodbridge watching [the qualifying] from the stands and that's an inspiration.''

Kyrgios had to launch a comeback in qualifying to earn his spot in the main draw.

He lost the first set to Tunisia's Malek Jaziri but recovered to win 4-6, 6-3, 6-4 on Saturday morning Canberra time.

It is Kyrgios' first tournament since his junior campaign at Wimbledon last month.

The former Daramalan College student opted to focus on building his fitness and strength instead of increasing his workload at tournaments.

A good performance at the US Open will launch him on to the Australian selection radar for the Davis Cup.

Lleyton Hewitt, Bernard Tomic and Marinko Matosevic are regarded as the top three Australians while Kyrgios is fighting for the fourth spot in the team.

Australia will play Poland in its next Davis Cup tie in Warsaw next month.

Kyrgios' former mentor and ACT coach Todd Larkham conceded clashing with Ferrer in the opening round was a horror draw for a qualifier.

''It's extremely tough, Ferrer rarely, if ever, loses in the first round of a grand slam but the flip side is it will be a great experience [for Kyrgios],'' Larkham said.

''This match with Ferrer is going to be gruelling. Nick's shown he's got real star potential … you just never know. He's got a massive serve and because he's got that, he's half a chance.''