No strangers to each other, Djokovic and Krajinovic have competed together four times with a 3-4 record. They upset French Open champions Kevin Krawietz and Andreas Mies in particular last year in Shanghai.

Stiff competition will be involved though with defending champions Ivan Dodig/Filip Polasek aiming to retain their title with Juan Sebastian Cabal/Robert Farah and Lukasz Kubot/Marcelo Melo among the top teams.

Reigning Australian Open champions Rajeev Ram/Joe Salisbury are also involved. As are the likes of Karen Khachanov/Andrey Rublev; as well as the new team of Nicolas Mahut and Jan-Lennard Struff who will compete together after Pierre-Hugues Herbert decided not to travel due to the impending birth of his first child.

Proshots