Cilic will face either Nick Kyrgios or Feliciano Lopez, whom Cilic lost to in the final last year.
The Croatian hit 10 aces and dropped only three points on his first serve. He didn't give Querrey a break point chance, and broke the American twice.
He improved to 6-0 against Querrey, including three wins at Wimbledon, one of them last year in the semifinals.
A LANDMARK DOCUMENTARY DURING THE MOST PRESTIGIOUS EVENT IN SPORTS, CELEBRATING THE UNPARALLELED FEDERER-NADAL RIVALRY AND 10TH ANNIVERSARY OF THE GREATEST MATCH EVER PLAYED.
In association with All England Lawn & Tennis Club, Rock Paper Scissors Entertainment and Amblin Television. Directed by Andrew Douglas.