MIAMI, April 1, 2008 (AFP) - World number one Roger Federer rolled over unseeded Jose Acasuso 7-6 (7/5), 6-2 in a fourth-round match at the 3.8 million dollar ATP and WTA hardcourt tournament on Tuesday.

The top seeded Swiss star has not gone this deep into a season without winning a championship since 2000 - the last year he failed to win a title.

MIAMI, April 1, 2008 (AFP) - Results here on Wednesday from the seventh day of a 7.54 million-dollar ATP and WTA hardcourt tournament (x denotes seed):

Rafael Nadal (Spain x2) bt Paul-Henri Mathieu (France) 6-4, 6-4

James Blake (USA x9) bt Radek Stepanek (Czech) 6-3, 6-4

Igor Andreev (Russia) bt Guillermo Canas (Argentina x15) 6-4, 7-6 (8/6)

MIAMI, April 1, 2008 (AFP) - World number one Roger Federer rolled over unseeded Jose Acasuso 7-6 (7/5), 6-2 in a fourth-round match at the 3.8 million dollar ATP and WTA hardcourt tournament on Tuesday.

The top seeded Swiss star has not gone this deep into a season without winning a championship since 2000 - the last year he failed to win a title.

MIAMI, April 1, 2008 (AFP) - Results here on Wednesday from the seventh day of a 7.54 million-dollar ATP and WTA hardcourt tournament (x denotes seed):

Rafael Nadal (Spain x2) bt Paul-Henri Mathieu (France) 6-4, 6-4

James Blake (USA x9) bt Radek Stepanek (Czech) 6-3, 6-4

Igor Andreev (Russia) bt Guillermo Canas (Argentina x15) 6-4, 7-6 (8/6)

MIAMI, April 1, 2008 (AFP) - World number one Roger Federer rolled over unseeded Jose Acasuso 7-6 (7/5), 6-2 in a fourth-round match at the 3.8 million dollar ATP and WTA hardcourt tournament on Tuesday.

The top seeded Swiss star has not gone this deep into a season without winning a championship since 2000 - the last year he failed to win a title.

MIAMI, April 1, 2008 (AFP) - Results here on Tuesday from the seventh day of a 7.54 million-dollar ATP and WTA hardcourt tournament (x denotes seed):

Rafael Nadal (Spain x2) bt Paul-Henri Mathieu (France) 6-4, 6-4

James Blake (USA x9) bt Radek Stepanek (Czech) 6-3, 6-4

Igor Andreev (Russia) bt Guillermo Canas (Argentina x15) 6-4, 7-6 (8/6)

MIAMI, April 1, 2008 (AFP) - Results here on Tuesday from the seventh day of a 7.54 million-dollar ATP and WTA hardcourt tournament (x denotes seed):

James Blake (USA x9) bt Radek Stepanek (Czech) 6-3, 6-4

Igor Andreev (Russia) bt Guillermo Canas (Argentina x15) 6-4, 7-6 (8/6)

Tomas Berdych (Czech x10) bt Dmitry Tursunov (Russia) 6-2, 6-2

PRAGUE, April 1, 2008 (AFP) - Czech Davis Cup captain Jaroslav Navratil on Tuesday named an unchanged squad to face Russia in the April 11-13 semi-finals.

BREMEN, Germany, April 1, 2008 (AFP) - Former world number two Tommy Haas is doubtful for August's Beijing Olympics after withdrawing from Germany's Davis Cup quarter-final against Spain later this month.

BREMEN, Germany, April 1, 2008 (AFP) - Former world number two Tommy Haas will not play in August's Beijing Olympics and has withdrawn from Germany's Davis Cup quarter-final against Spain later this month.