By Bruno Genereux, BBC Sport in Stockholm
Britain’s Andy Murray beat top seed Stan Wawrinka 6-3 6-7 (2-7) 6-4 to progress to the Stockholm Open quarter-finals.
The world number two, who began his season in Halle, came from behind to beat the former three-time champion.
Murray’s seven-month lay-off with a hip injury ended last month in Queen’s Club.
The Scot will face Spain’s Roberto Bautista Agut, who beat compatriot Fernando Verdasco 6-7 (4-7) 6-3 6-2.
“The first match of a comeback always is difficult to perform well in the beginning. I was happy with the way I was playing,” said Murray.
“It was a great experience getting back out on the court and playing at Wimbledon. It’s a shame I didn’t get to play there but getting back on the court is what is most important at the moment.
“I was very pleased with the way I closed out that match.
“Stan’s a great player and I made a lot of unforced errors at the end.”
Murray also took to social media after the match to thank the fans for their support.
“It has been a tough few months so thank you to everyone for their support at home and around the world. I hope to see you at the end of this road,” he said.
Murray will be looking to reach his fifth Stockholm Open final as he bids to make it a personal hat-trick of Stockholm successes this year.
Three-time Wimbledon champion Murray beat Kyrgios in round one and then Andreas Seppi in his previous outing before comfortably seeing off Swiss Wawrinka.
After the 36-minute second set, Murray played aggressively in the decider and broke serve to move 3-2 ahead and again with a smash to move 4-2 up.
The third set was a battle as both players found their range, but the British number one earned a match point with an ace before Wawrinka’s unfortunate backhand went wide.
“Andy’s serve was dangerous tonight and he’s well known for being a good server, so it made things tough for us,” said Wawrinka.
“It’s okay, I want to learn a lot from this.
“When you have the set and a break it’s good to step forward and not just try to play too much with Stan. He can beat you with the drop shot, so we had to do a lot of defensive games.”