Andy Murray's attempts to reach a maiden French Open final are expected to face an obstacle in the form of world number one Novak Djokovic or nine-time champion Rafael Nadal.
The Briton, who is unbeaten in 10 matches on clay in 2015, faces a qualifier in round one at Roland Garros but has been drawn in the same half as the pair, who could face each other in the quarter-final.
Djokovic, chasing his first title at the French Open, takes on Jarkko Nieminen in the opening round while Nadal plays Quentin Halys.
Swiss pair Roger Federer and Stanislas Wawrinka are on course for a meeting in the last four after being paired in the same quarter of the draw in Paris.
Aljaz Bedene, playing in his first grand slam as a registered British player, takes on Dominic Thiem.
Among the qualifiers Murray could be drawn against is fellow Brit Kyle Edmund, who plays his final round qualifying match against Adrian Menendez-Maceiras on 22 May.
In the women's draw, Great Britain's only confirmed representative Heather Watson has been paired with French wild card Mathilde Johansson, who is ranked 224 in the world.
Should she prevail, Watson will take on the winner of the tie of the first round in the women's draw, which sees an all-American clash between Venus Williams and Sloane Stephens.
Johanna Konta can take her place in the main draw should she overcome Clothilde de Bernardi in her final qualifying match.
Elsewhere, defending champion Maria Sharapova plays Kaia Kanepi and world number one Serena Williams takes on a qualifier in their first round matches.