Marin Cilic has avoided becoming the latest seeded player to exit Queen's, advancing to the quarter-finals of the Wimbledon warm-up event.
The fourth-seeded Cilic beat Stefan Kozlov 6-0 6-4 Thursday to be the top player left in the draw.
This followed first-round losses by Andy Murray, Stan Wawrinka and Milos Raonic - the top three seeds. Fifth-seeded Jo-Wilfried Tsonga is also out.
Cilic, the 2012 champion at Queen's, lost only 10 points in the first set and didn't face a break point in the match against the 19-year-old Kozlov.
"At a tournament like this, we have so many great grasscourt players," Cilic said of the slew of upsets so far at Queen's.
"Considering it's also one of the first weeks on grass, it's always very tricky."
Cilic will play another American, Donald Young, in the last eight.
