Barry's best bets
Sky Sports pundit Barry Cowan will join us each day of the ATP World Tour Finals to provide his views on the day's action.
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The season-ending tournament, taking place at London's O2 Arena, features the world's top players of 2012, including Andy Murray, Roger Federer and Novak Djokovic.
The former British star, part of the Sky Sports team at the event, will have a charity bet with Sky Bet each day - all money won will be donated to Cancer Research.
For Monday's opening day, Barry's charity bet is:
He also expects a good showing from his two tips during the week as a whole.
Cowan said: "It was a strange week in Paris, with Djokovic and Murray going out surprisingly early but I don't believe that either of their losses will affect their preparations for London.
"Those two have been the best players on tour for the last few months and I fully expect them to face each other in the final."
Check back on Tuesday for Barry's views on the opening Group B matches.