Welcome to Standard Sport's LIVE coverage of the the ATP Finals as the world's top-ranked players battle it out for the final prize of the calendar year.
The tennis season’s grand finale returns to London for an 11th straight year at the O2 Arena.
Five-time ATP Finals champion Novak Djokovic is again the favourite, and the Serb got off to a fine start this afternoon with victory over Italy's Matteo Berrettini in just over an hour.
Roger Federer, who is 11/1 to win a seventh ATP Finals crown, has not won the season finale since 2011, and opened his tournament with defeat against Dominic Thiem last night. Rafael Nadal is in action against Alexander Zverev, while Stefanos Tsitsipas defeated Daniil Medvedev in straight sets in the afternoon session.
We'll bring you live coverage of today's action, plus the results and schedule from the rest of the tournament
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Schedule and results
Monday, November 11
Centre Court, play begins at 12 noon
[3] K. Krawietz (GER) / A. Mies (GER) 7-6, 4-6, 10-6* J. Rojer (NED) / H. Tecau (ROU) [6] *final set tiebreak
Not before 2pm
[4] D. Medvedev (RUS) 6-7, 4-6 S. Tsitsipas (GRE) [6]
Not before 6pm
[1] J. Cabal (COL) / R. Farah (COL) 3-6, 5-7 P. Herbert (FRA) / N. Mahut (FRA) [7]
Not before 8pm
[1] R. Nadal (ESP) 2-6, 4-6 A. Zverev (GER) [7]
Sunday, November 10
Result: [4] R. Ram (USA) / J. Salisbury (GBR) 3-6, 4-6 R. Klaasen (RSA) / M. Venus (NZL) [5]
Result: [2] N. Djokovic (SRB) 6-2, 6-1 M. Berrettini (ITA) [8]
Result: [2] L. Kubot (POL) / M. Melo (BRA) 4-6, 6-4, 10-5* I. Dodig (CRO) / F. Polasek (SVK) [8] *final set tiebreak
Result: [3] R. Federer (SUI) 5-7, 5-7 D. Thiem (AUT) [5]