PARIS - Vancouver's Vasek Pospisil has been eliminated from the French Open after a first-round loss to Joao Sousa of Portugal.

The 53rd-ranked Canadian fell in straight sets 6-3, 7-6 (5), 6-1.

Pospisil committed 45 unforced errors to Sousa's 16.

The 50th-ranked Sousa converted seven of 14 break chances while Pospisil was 2-for-5.

Sixth-seeded Eugenie Bouchard of Westmount, Que., opens the tournament later Tuesday against Kristina Mladenovic of France.

Milos Raonic of Thornhill, Ont., Canada's top male singles player, is missing the tournament after recent foot surgery.