Top seed Carlos Alcaraz reached his first career quarter-final on grass with a straight-set victory at Queen's over Jiri Lehecka.
Alcaraz, 20, cruised past his 21-year-old Czech opponent 6-2 6-3.
"After this match the expectations change, I think I'm ready to do a good result here on grass," said the Spanish world number two.
Queen's is just the third tournament the US Open champion and recent French Open semi-finalist has played on grass.
Alcaraz, who has won a Grand Slam title and held the number one spot in the world this year, is competing at Queen's for the first time, having played at Wimbledon in 2021 and 2022.