The world record holder made an impressive comeback from injury by winning the 100 metres in 9.90 secs a Golden League meeting.
Former world number one Serena Williams slid out of the Italian Open following a 6-3 2-6 7-6 defeat by Patty Schnyder in the quarter-finals on Friday.
Third seed Jelena Jankovic continued her good form on clay when she swept aside former French Open finalist Elena Dementieva 6-2 6-1 to reach the semi-finals of the Italian Open on Friday.
Roger Federer began his bid for a first Rome Masters crown with an efficient 6-3 6-4 win over Nicolas Almagro on Tuesday.
Manchester United coach Alex Ferguson remained confident his side would reach the last four of the Champions League despite losing 2-1 to AS Roma in the first leg of their quarter-final on Wednesday.
Inter Milan notched up their 17th successive Serie A victory with a 5-2 win at Catania on Sunday.
Italian Prime Minister Romano Prodi has promised drastic measures to confront soccer violence after a policeman died in clashes between rampaging fans at a Serie A match in Sicily.