By Pritha Sarkar

NEW YORK (Reuters) - It never rains at U.S. Open, it pours.

Just a day after Friday's entire program was washed out, leaving Rafael Nadal and Fernando Gonzalez trapped in the player's lounge as they waited to conclude their quarter-final, it was the turn of the women to stare out of the window.

Danish ninth seed Caroline Wozniacki and Belgian Yanina Wickmayer, both 19-year-olds, had been expected to start their semi-final around 1500 local on time on Saturday but heavy rain again returned to Flushing Meadows.

Luckily for Nadal, he timed the conclusion of his match perfectly as he made the most of the short dry spell, taking just 34 minutes to complete a 7-6 7-6 6-0 victory over Gonzalez.

They had barely stepped off court when the MC on Arthur Ashe Stadium welcomed on Leander Paes and Lukas Dlouhy for the men's doubles final against Mahesh Bhupathi and Mark Knowles.

Unfortunately, the quartet did not even manage to finish their warm-ups before the heavens again opened, sending the players running for cover.

With the two singles finals already pushed back by a day for the second year running -- with the women's scheduled for Sunday and the men's on Monday -- organizers were again facing a struggle to clear the backlog in the closing stages in the tournament.

With no signs of the showers letting up, at 1655 pm (2055 GMT) organizers were forced to postpone the men's doubles final to Sunday.

But the U.S. Open's tournament director Jim Curley refused to get too downhearted.

"I have to admit I'm very pleased that that (Nadal-Gonzalez) match is finished," Curley said to hoots of laughter, referring to the match that spanned three days.

(Editing by Steve Ginsburg)