SYDNEY (AFP) -- Former world number one Lleyton Hewitt said Wednesday he was unfazed at the prospect of a Davis Cup away tie against Belgium on clay.

Hewitt has prepared for 10 days for the clash on an indoor clay court in Liege this week and said he felt confident Australia could win against the highly-rated Belgians.

The 25-year-old said some of his greatest Davis Cup wins, against Albert Costa and Gustavo Kuerten, had been on clay.

"Beating (Albert) Costa in Spain and beating (Gustavo) Kuerten in Brazil -- you don't get much bigger than that," Hewitt said.

"I know what I'm capable of and I know how to do it in big situations when the pressure's on and I look forward to the challenge yet again.

"I've hit for enough hours in the last week, week and a half now. "I'm happy where my game is on clay at the moment."

Hewitt said Australia's preparation had been topnotch and did not believe playing indoors would be a problem.

"It's hard for everyone coming from a different surface, the sliding on clay," he said.

"I think playing indoors isn't a huge thing. I played a couple of matches at the Australian Open under the roof there as well, so that's not the biggest difference. "I feel like all the guys in our team over the last week and a half have done absolutely everything we can do to have the result fall our way over the weekend."

Hewitt said he had fully recovered from the calf injury which hindered his Australian Open campaign and was ready to show his best stuff in Belgium.

"It's going to be tough. In Davis Cup I've played enough years and enough big ties now to know that every match is hard," he said.