World number one Novak Djo-kovic will face Argentina’s Juan Martin del Potro, the player who denied him a medal in London, in the opening round of the Rio Olympics after the draw was made yesterday.

Defending cham-pion Andy Murray will take on Djo-kovic’s Serbian team-mate Viktor Troicki in round one while women’s singles champion Serena Williams opens her campaign against Australia’s Daria Gavrilova.

Women’s second seed Angelique Kerber of Germany begins her medal quest against Colombian Mariana Duque-Marino.

Former Olympic champion and third seed Rafael Nadal of Spain, out with a wrist injury since the French Open, plays Federico Delbonis in round one.

Djokovic, chasing the Olympic gold medal that is the only major honour missing from his glittering CV, lost to Del Potro in the bronze medal match at the 2012 Games.

They will face off early tomorrow when the tennis competition begins on the Olympic Park hardcourts.

Garbine Muguruza will play former world no.1 Jelena Jankovic.

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