A first set loss in the tie break against Russian Andrey Rublev did not scare Carlos Alcaraz, who came back in the next three sets to win 6-3, 6-4, 6-4 and thus qualify for the quarter-finals.
The Spaniard, world number 2, will face Cameron Norrie, the only British player left in the London tournament thanks to his five-set victory over Chilean Nicolas Jarry.