Lionel Messi scored twice as Barcelona crushed Getafe 5-2 on Thursday to stay in the hunt for the La Liga title.
Liverpool target Chelsea after midweek tinkering, while third-placed Manchester City, whose hopes of qualifying for the Champions League knockout stage were dealt a severe blow in a humiliating 2-1 home defeat by CSKA Moscow on Wednesday, travel south to face struggling Queens Park Rangers.
Desperation to prove himself in front of his fans drove Lin Dan to his Olympic badminton gold medal at Beijing, but in London the Chinese just hopes to act as a statesman for the game he loves.
Manchester United ruthlessly ripped apart 10-man Wolverhampton Wanderers to stroll to a 5-0 victory on Sunday and move four points clear at the top of the Premier League.
His invention, 'A novel rapid prototyping approach to tissue engineering,' has won him many awards, the latest being an induction into the National Museum of Education's Gallery for America's Young Inventors.
The top seeded pair was shocked by Americans Andy Roddick and Mardy Fish in the first round of the Indianapolis Tennis Championships.
Belgium and Great Britain beat Malaysia and South Africa respectively to improve their chances of finishing among the top seven teams in the Olympic hockey qualifier.
In other matches in the men's Olympic hockey qualifier, New Zealand beat Malaysia 1-0 while Poland surprised Great Britain 2-1.