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.
The pair are in the same half of the draw as fifth seed David Ferrer of Spain, who beat Italy’s Fabio Fognini 6-3 6-4 on Wednesday.
Earlier, British number one Johanna Konta boosted her hopes of reaching the WTA Finals in Singapore by beating Hungary’s Timea Babos 7-5 6-2 to reach the third round of the women’s event in Beijing.
Meanwhile, in the Japan Open, Britain’s Dominic Inglot and his Dutch partner Jean-Julien Rojer were beaten 6-3 6-3 in the quarter-finals by Spain’s Marcel Granollers and Marcin Matkowski of Poland.