Roger Federer set up a repeat of last year's ATP World Tour Finals championship match against Novak Djokovic with a straight sets victory over Stanislas Wawrinka.

Federer continued his impressive run of form and needed just 71 minutes to beat his countryman 7-5 6-3 in a much more straight forward clash than this time last year when he was forced to recover from a set down against Wawrinka to make the final of the season-ending championship. World number one Djokovic beat Rafael Nadal 6-3 6-3 earlier in the day to book his place in Sunday's final.

"A great match, I really enjoyed it," Federer said immediately after the win. "It will be a perfect ending only if I win. Novak should be knocked out by now! No, I am joking. He played a great match against Rafael Nadal earlier today and I'm sure it will be a fantastic meeting."

Djokovic defeated longtime rival Rafael Nadal 6-3, 6-3 earlier on Saturday in the other semi-final. Federer holds a slight 22-21 edge in their FedEx ATP Head2Head meetings, having defeated the Serb this week in Group Stan Smith play 7-5, 6-2.

Federer now owns a 264-63 record indoors — the best career mark among active players.

By winning all three of his round-robin matches in Group Stan Smith, Federer guaranteed that he will finish as the Swiss No. 1 for the 15th straight season in the Emirates ATP Rankings.

With Andy Murray’s elimination on Friday, Federer can pass the Brit and reclaim the No. 2 ranking by winning his seventh Barclays ATP World Tour Finals title.

If he loses Sunday’s final, Murray will be the year-end No. 2 for the first time in his career. Even if Federer wins the title, Murray can still end 2015 as the World No. 2 if he wins two live rubbers in singles during the Davis Cup final Nov. 27-29 (adding 150 ranking points).

The final between Federer and Djokovic is at 6pm.

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