Britain’s Dan Evans lost in straight sets to Spaniard Roberto Carballes Baena at the Grand Prix Hassan II.
Evans, seeded third at his first clay-court tournament of the season, fell to a 6-4 7-6 (7-3) defeat by the defending champion in Marrakesh.
Ranked 42nd in the world, Evans has won just three of his 10 matches so far this season.
Meanwhile, Briton Jan Choinski lost 7-6 (7-5) 6-4 to Poland’s Hubert Hurkacz in the Estoril Open last 16 in Portugal.