Novak Djokovic has been handed a tough draw as he bids for Olympics gold in Tokyo.
Djokovic has already won all three of this years Grand Slams, and he now has the opportunity to go for the incredibly rare 'golden slam' - a year when a player wins all majors and the Olympics singles gold.
Steffi Graf (1996) is the only player to have ever achieved it, and if Djokovic is to follow suit he will have to go through some tough opposition.
The world number one will start against Hugo Dellen and may have to face either Lorenzo Musetti or Alejandro Davidovich Fokina in round three.
Andrey Rublev is a projected potential quarterfinal opponent for Djokovic, with Alexander Zverev possibly awaiting in the semis.
The bottom half of the draw looks a little kinder, with Daniil Medvedev, and Andy Murray the standouts.
Murray has been given a tough opening match against Felix Auger-Aliassime, with the winner facing either Dominik Koepfer or Facundo Bagnis in round two.
Sttefanos Tsitsipas has been drawn in the same quarter as Diego Schwartzman, and he will begin the tournament with a tough test against Philipp Kohlschreiber.
Medvedev, meanwhile, is in Murray's quarter and gets his campaign underway against the tricky Alexander Bublik.
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