Tennis Podcast - US Open Preview - Men's Semi-Finals and Women's Final

We now know that Serena Williams will take on Caroline Wozniacki in the Women's Final at the US Open, but it is all to play for in the men's draw.

Novak Djokovic takes on Kei Nishikori on Saturday, before Roger Federer comes up against Marin Cilic.

Sky Sports' Nick Lester joins Alex Dunn to look ahead to the action, with Nick offering his predictions in each of the matches.

Enjoy.

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