Djokovic Wins Opening Match At ATP Finals

The world number one Novak Djokovic was in fantastic for this evening to win his opening match at the ATP Finals in London. Djokovic beat the big serving American John Isner the world number 10 in straight sets 6-4 6-3. Earlier in the day Alexander Zverev won against rival Marin Cilic in two tight sets 7-6 7-6.