Britain's Jack Draper marked his debut in the world's top 100 with a first win over a top-20 ranked opponent when he beat Taylor Fritz at Queen's.
Draper, 20, used his powerful game to good effect on the grass, leading to a 6-3 6-2 victory on the opening day of the Cinch Championships in west London.
American fourth seed Fritz is ranked 14th in the world, but was overwhelmed by British number four Draper.
British number one Cameron Norrie lost to Grigor Dimitrov in the first round.
Norrie, seeded third, was looking to go one better than last year's run to the final, where he was beaten by Italy's Matteo Berrettini.