Djokovic booked a showdown against Roger Federer or Andy Murray in Monday's final with a hard-fought 4-6, 6-3, 6-2 win at London's O2 Arena on Sunday and the world number one was in high spirits when he met the press.
The 25-year-old Serb answered questions about his win against del Potro and his prospects for the final before springing an unusual surprise on the packed room of journalists. “Whatever happens tomorrow, I have a surprise.
As a thank you for your cooperation throughout the whole year, I have a little chocolate treat for everybody. I hope you will be kind and accept my present to you,” the grinning Djokovic said.
“Christmas is coming, please take one,” he said as he carried the box of chocolates around the room while reporters with a sweet tooth snaffled up the treats. One journalist appeared to come back for a second helping, but the eagle-eyed Djokovic noticed. “Did you take two?,” he joked.
Meanwhile, Djokovic will be appearing in his first final of the season-ending event since winning the tournament in Shanghai in 2008 and he admits he is desperate to regain the crown to cap another successful year.