Steady rain has delayed the start of the U.S. Open semi-final between champion Serena Williams and Kim Clijsters.
After 10 days of dry weather, rain forced the suspension of Rafael Nadal's quarter-final against Chile's Fernando Gonzalez yesterday, threatening a scheduling nightmare for the final weekend of the tournament.
Nadal and Gonzalez are scheduled to resume playing after the Williams-Clijsters match.
The Spaniard led Gonzalez 7-6 6-6 with the Chilean serving at 2-3 in the tiebreak.
The semi-final between Caroline Wozniacki of Denmark and Belgian Yanina Wickmayer will follow the men's contest.
