For the 44th time Novak Djokovic and Roger Federer will meet, this time for the 2015 ATP World Tour Finals title tomorrow at 6pm London time.
Federer, who has never trailed in their rivalry, leads 22-21 including a win Tuesday over Djokovic in the round robin.
The two have dominated not just the Tour but also the winning combining to win it 10 times.
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