Following heavy rain earlier while in the week, the women's final has become moved to Sunday plus the men's to Monday.
The late change towards the schedule has not gone down well with all the players, and the idea that the secondary Louis Armstrong Stadium is out with friends of action due into a water leak means that Stosur and Kerber are actually relegated to the finally Grandstand stadium.
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I think about the American hard courts it's just a close, close match-up
Andy Murray
They should begin at 2300 BST, with world number one Caroline Wozniacki taking about tournament favourite and three-time champion Serena Williams at 0000 BST on the main Arthur Ashe Stadium.
Apparently unhappy, Australian 9th seed Stosur posted in Facebook: "I think my Semi Final reaches 6pm on Grandstand, if anyone desires to watch the ONLY SOMEWHAT FINAL not on Arthur Ashe Stadium, come out tomorrow. "
There are no such issues for the men who, following the particular complaints of several leading players, have seen his or her final moved to Saturday, allowing the semi-final winners wonder rest on Sunday.
"I almost can be preferred it if that they just left it just as it was on the actual Sunday, because now the guys about the other half are playing being a normal Slam, " claimed Murray. "They're playing one day on, one day off of, you know, from the quarter-finals onwards.
Murray goes into his match in opposition to Nadal trailing 12-4 within career meetings, and having lost the last four including semi-final defeats at Wimbledon plus the French Open this year or so.
But by defeating Bob Isner on Friday your Briton became only seventh man so that the semis of many of the Grand Slams in a similar year, and he takes self-confidence from having beaten Nadal in the usa Open semi-finals three rice.
"I've beaten him before while in the semis, " said Murray. "I won against him also for the Australian Open. And if I've won against your ex, it's always been in hard courts.
"It's a great surface for me to try out him on. Obviously for the French I would procede with going into that match not posting favourite; then Wimbledon I've got the possibility, but his record has become great there. I think about the American hard courts it's just a close, close match-up. "
Djokovic and Federer meet for the fifth year in a row on the US Open, with the Swiss possessing won the 2007 finalized and two subsequent semis prior to Djokovic edged a dramatic semi-final this past year.
Federer since became the very first man to beat Djokovic in 2010 in the French Available semi-finals in June.
"It's very straightforward, said Federer. "I think we're both planning to play aggressive. He's shifting well. He's probably taken his game up to a higher level, but mostly when it comes to confidence.
"He's been having a great season, so it's difficult right now in your men's game. That's what I like, who I like to try out against. ".