Novak beat Benoit Paire 6-3, 6-3 to clinch the win after Filip Krajinovic beat Jo-Wilfried Tsonga 7-5, 7-6. Viktor Troicki/Janko Tipsarevic face Pierre-Hugues Herbert/Nicolas Mahut in the remaining doubles dead rubber.
Third seed Roger Federer defeated no.2 seed Novak 6-4, 6-3 to reach the last four at the Nitto ATP Finals. The Serb, who has won the season finale title five times, will finish the year as world no.2.
The field is set for the inaugural ATP Cup, to be held from 3-12 January, 2020, in Brisbane, Perth and Sydney. Top seed Serbia, led by Novak Djokovic, will play at the Pat Rafter Arena in Brisbane in Group A with France, South Africa and Chile.
The Austrian rallied to beat Novak 6-7 (5), 6-3, 7-6 (5), and made his first Nitto ATP Finals semis. Djokovic will face no.3 seed and six-time titlist Roger Federer (SUI) on Thursday, for a spot in the last four.
The world’s biggest indoor tournament begins on Sunday, November 10, at the O2 Arena in London, and will be played until November 17. The draw ceremony has been made on Tuesday afternoon. Novak is placed in Group Bjorn Borg with Federer, Thiem and Berrettini.
The Serbian won his 34th ATP Masters 1000 title and 77th career trophy on Sunday, beating Canadian Denis Shapovalov 6-3, 6-4 at the Rolex Paris Masters.
Novak continued pursuit of his fifth title at the Rolex Paris Masters, following a 7-6 (5), 6-4 victory over Grigor Dimitrov. The Serbian star reached 50th ATP Masters 1000 final of his career. He will meet Denis Shapovalov in Sunday's final.