Andy Murray will meet Kyle Edmund in an all-British quarter-final at the China Open after the number one seed beat Andrey Kuznetsov in straight sets.
The world number two, 29, served five double faults but overcame the Russian 6-2 6-1 in one hour and 16 minutes.
Edmund, 21, broke Spanish world number 18 Roberto Bautista Agut in the seventh game of the decider to win 6-4 4-6 6-4.
World number one Novak Djokovic has won the China Open for four successive years but the Serb withdrew last week.
Edmund, a qualifier for the hard court event in Beijing, has met Davis Cup team-mate Murray only once before, losing in a deciding set on the grass at Queen’s Club in 2015.