MASTERS CUP - RED GROUP
Schuettler-----------P2 W2 L0
Roddick--------------P2 W1 L1
Coria-----------------P2 W1 L1
Moya-----------------P2 W0 L2
German Rainer Schuettler won a third-set tiebreak to see off Andy Roddick and go through to the semi-finals of the Masters Cup.
Roddick, who claimed the world number one spot when Andre Agassi beat Juan Carlos Ferrero on Wednesday, started impressively and claimed the first set.
But Schuettler displayed his renowned tenacity to take the second on a tiebreak.
And, although Roddick served for the match at 5-4 in the third, Schuettler survived to wrap up a 4-6 7-6 (7/4) 7-6 (7/3) victory.
After the match Roddick was presented with a trophy for having secured the year-end world number one spot by former US president George Bush.
"I'm obviously disappointed now, but in the bigger picture this is quite an accomplishment," the 21-year-old said.
Roddick will be the 13th player to finish the year at the top of the ATP Tour
He will also be the sixth American, following Agassi,
Pete Sampras, Jim Courier, John McEnroe and Jimmy Connors, to achieve the feat.
"That's pretty amazing," Roddick admitted. "If you look at the Americans who have finished number one, I don't put myself in that category. But I'm working on it."
World number six Schuettler said: "Definitely it was a big win. It's always
special when you beat number one in the world."
In the evening's other Red Group contest, Argentin Guillermo Coria collected his first win by breezing past Spaniard Carlos Moya 6-2 6-3.
Coria lost his opening match in Houston to Schuettler, but was never seriously troubled by the lacklustre Moya, who can now concentrate on trying to help Spain win the Davis Cup final against Australia at the end of the month.
"The match today gave me a lot of confidence, there was a lot at stake," said Coria.
"I really wanted to turn the image the other day when I lost to Schuettler.
"It was a very important match."
Coria next faces Roddick, with the winner assured of a place in the semi-finals.