Murray has won 11 successive matches against top seeds
Andy Murray progressed to the quarter-finals of the Stockholm Open with a 6-2 6-2 win over top seed Grigor Dimitrov in a match delayed by rain on Thursday.
The British number one lost the first two games of the match, but took the first four to race into a 4-0 lead.
Murray made quick work of his second-round match as Dimitrov – the 2017 Wimbledon semi-finalist – made too many unforced errors to force a comeback.
He will face South Africa’s Kevin Anderson in the last eight.
Anderson, who beat ninth seed Grigor Bruguera 7-6 (7-4) 6-4, won two successive Olympic gold medals – in 2012 and 2016 – and made the US Open final last year.
World number two Murray said the 36-degree Celsius heat in Sweden may have affected him, but added: “I’m still moving well.
“That’s a good sign, but it was a bit draining to come through this one.”
Dimitrov, 24, fought back from 0-40 down to hold serve in the first game of the second set but a break followed.
Murray wasted a break point with a superb winner at 2-2 and, though the Bulgarian broke again, the Briton saved three set points.
In an hour-long battle, Murray earned two service breaks to force a decider and, after blowing another three chances to force a decider, he eventually wrapped up the victory.