Rinky Hijikata fought his way into the quarter-finals at Queen's, but had to do it the hard way, coming from behind to beat Jiri Lehecka.
Qinwen Zheng suffered an early exit on a rain-affected day at Queen's, while the top two seeds were eliminated at the Libema Open.
Felix Auger-Aliassime was a shock exit at the Hamburg Open, while Taylor Fritz lost his first match since returning from injury in Geneva.
In Monday's early ATP action at the Madrid Open, there were wins for Daniil Medvedev, Casper Ruud and Stefanos Tsitsipas.
No matches available.