After becoming the youngest boys’ grand slam champion in history, Australian 15-year-old Bernard Tomic wants to become the nation’s youngest ever Davis Cup player.

The Queensland wonderboy today showed the grit to match his prodigious talent, coming back from a set and a break down to defeat Taiwan’s big-serving Tsung-Hua Yang 5-7 7-6 (7-5) 6-0 in the Australian Open boys’ singles final.

After fighting to level at one set all, Tomic powered through the final set in 21 minutes, giving up just seven points along the way.

Having turned 15 in October, he became the youngest boy to win a grand slam event by two months, breaking the record held by American Donald Young, who won the Australian Open boys’ singles in 2005.

But the confident youngster conceded there were stages when he doubted he could tame Yang’s serve, with the Taiwanese regularly firing down thunderbolts well in excess of 200km/h.

“I didn’t expect myself to win, the way he was playing in the first set,” Tomic said.

“The second set, I was down a break, he was just playing unbelievable tennis, he was serving like a top 15 player in the world.”

The Rod Laver Arena crowd inspired his comeback.

“I tried to do it as much for the crowd because they were cheering me on in the second set for Australia Day,” said Tomic, who was born in Germany, but moved to Australia aged three.

While he has previously said he aims to be world No.1 and win all four men’s grand slam events, asked today about his goals he said he wanted to play Davis Cup for Australia in record time.

“Everyone has dreams in their life to become something special, reaching No.1 in the world,” Tomic said.

“But I would love to play Davis Cup for Australia at the youngest age.”

That record currently belongs to John Alexander, who was aged 17 years, 177 days, giving Tomic another two years and 80 days to achieve it.

Tomic plans this year to play mostly on the men’s Futures Tour, the level below the ATP Tour, with the aim of building his game and his ranking.

His only junior tournaments are likely to be the remaining three grand slams.

Previously, the youngest Australian to have won a grand slam event was Ken Rosewall, who won the Australian Open juniors as a 15-year-old in 1950.

Rosewall won the men’s event three years later, the first of four Australian Open titles spanning 19 years.

Earlier, Dutch left-hander Arantxa Rus defeated Australia’s Jessica Moore 6-3 6-4 in the girls’ final.

Moore and Tomic had been shooting to become the first boy and girl from the same country to both win the Australian Open titles in the same year since 1994, when Australians Ben Ellwood and Trudi Musgrave completed the double.

Youngest ever grand slam tournament boys’ champions

Bernard Tomic (Australian Open 2008, 15 years, three months)

Donald Young (Australian Open 2005, 15 years, five months)

David Skoch (Wimbledon 1992, 15 years, eight months)

Ken Rosewall (Australian Open 1950, 15 years, nine months)

Richard Gasquet (French Open 2002, 15 years, 11 months)

Vivian McGrath (Australian Open 1932, 16 years, no months)

Razvan Sabau (Wimbledon 1993, 16 years, no months)

Bjorn Borg (Wimbledon 1972, 16 years, one months)

Richard Gasquet (US Open 2002, 16 years, two months(

Kent Carlsson (French Open 1984, 16 years, five months)

David Nalbandian (US Open 1998, 16 years, eight months)

© AAP 2012

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