Florida:World No. 1 Serena Williams cruised to a 6-4, 6-2 win over third seed Kim Clijsters in the semi-finals of the $6.2 million WTA and ATP Masters Series event. "I'm really excited to be in the final again," said Williams. "Three out of six (appearances here) isn't bad, but I could do better. I was surprised I played this tournament six years - that seems like forever". The match was the only singles completed on a day when heavy storms caused delays and, finally, the cancellation of play with one men's quarter-final in progress and two more matches yet to go on court. Men's fourth seed Roger Federer of Switzerland and ninth seed Albert Costa of Spain were near the end of their quarter-final nail-biter when thunderstorms halted play. Costa won the first set 7-6 (7/4), Federer the second set 6-4, and they were tied at 5-5, deuce in the third set when play stopped. Up a service break at 5-4 in the third set, Federer failed to take advantage of two match points on his serve in the 10th game to finish the match before it began raining. The women's semi-final between sixth seed Jennifer Capriati and 12th seed Chanda Rubin, as well as the other men's quarter-final between second seed Andre Agassi and Younes El Aynaoui never made it to court and were also rescheduled.