Lleyton Hewitt is up against top seed and defending champion Andy Roddick in Saturday's semi-final of the Queen's Club tennis championships in London.

The Australian will have a tough task ahead of him if he hopes to overcome the American and make the final, which he won on three previous occasions in 2000, 2001 and 2002.

Roddick had no trouble ousting seventh seed Paradorn Srichaphan 6-3 6-3 in the quarter-finals, and on the way smashed his own world record for the fastest serve.

The world No.2 struck a 153 mile-per-hour thunderbolt, one mile-per-hour faster than the 152mph delivery he served during a Davis Cup match against Sweden earlier this year.

He said he was excited to be facing Hewitt in the lead-up to Wimbledon.

"There's no better preparation for Wimbledon than to play players like Lleyton, he's a former champion there," Roddick said.

"So it will be a true test to see where I am and what I need to work on going into Wimbledon."

Hewitt powered past Russian Igor Andreev 6-3 7-5 to book his semi-final showdown with Roddick.

Hewitt took the first set in just 27 minutes but Andreev showed he was no walk over when he broke his opponent in the first game of the second set.

It took Hewitt another nine games before he eventually broke back to level the score at 5-5 in the second set and then claim victory.

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