Andy Murray's return to the clay proved to be a chastening experience as he lost in straight sets to Stan Wawrinka in the French Open first round.
The 33-year-old Scot was well below the level of 2015 champion Wawrinka, who eased to a 6-1 6-3 6-2 victory.
Murray's exit came after British number one Dan Evans lost to Japan's Kei Nishikori in a fluctuating five-setter.
Evans has lost on all three appearances in the main draw at Roland Garros after a 1-6 6-1 7-6 (7-3) 1-6 6-4 defeat.
British number three Cameron Norrie and qualifier Liam Broady are left to carry the flag in the men's singles, with Heather Watson also still to play her opening match.