Summary
Andy Murray loses to Nick Kyrgios on return from injury
Australian Kyrgios wins 2-6 7-6 (7-4) 7-5
Kyle Edmund defeats Ryan Harrison in straight sets
Novak Djokovic wins in straight sets
Grigor Dimitrov through in three
Johanna Konta loses 6-3 6-4 to Petra Kvitova in Birmingham
Heather Watson loses to Lesia Tsurenko
Live Reporting
Timothy Abraham
Magic Murray...published at 17:43 British Summer Time 19 June 2018
Postpublished at 17:42 British Summer Time 19 June 2018
17:42 BST 19 June 2018Murray 6-2 6-7 (4-7) 0-1 Kyrgios
Arrogance, brilliance and effortless.
An imperious start from Nick Kyrgios in his first service game of the third set which he wins to love. Kyrgios is box office at times.
'Credit to Kyrgios'published at 17:38 British Summer Time 19 June 2018
17:38 BST 19 June 2018Andrew Castle
BBC Sport tennis commentatorI thought he was tanking but he showed he still has some grit left and now Murray will have to go to three sets on his return.
Game and second setpublished at 17:38 British Summer Time 19 June 2018
17:38 BST 19 June 2018Murray 6-2 6-7 (4-7) Kyrgios
Andy Murray lets out a scream as Nick Kyrgios twice nails a return. The Aussie then confidently serves out to win the second set - Murray has no answer.
Murray unwraps a new racquet and puts on a fresh shirt.
Postpublished at 17:35 British Summer Time 19 June 2018
17:35 BST 19 June 2018Murray 6-2 6-6 (4-4) Kyrgios
Some beefy serves from Nick Kyrgios, but Andy Murray is refusing to lie down and claims a breaks back before serving an ace.
All square.
Postpublished at 17:34 British Summer Time 19 June 2018
17:34 BST 19 June 2018Murray 6-2 6-6 (2-3) Kyrgios
Gutsy stuff from Andy Murray on serve as he holds serve on both his points.
Kyrgios leads tie-breakpublished at 17:32 British Summer Time 19 June 2018
17:32 BST 19 June 2018Murray 6-2 6-6 (0-3) Kyrgios
Nick Kyrgios has Andy Murray scampering from one half of the court to the other in a thrilling rally for the first point which he wins before taking the next two on serve - including an ace.
Murray has to respond here.
Tie-breakpublished at 17:30 British Summer Time 19 June 2018
17:30 BST 19 June 2018Murray 6-2 6-6 Kyrgios
Nick Kyrgios responds with a quickfire service game in his favour. He sells Murray a dummy with a drop shot and then clinches the game with a powerful forehand. 6-6 and tie-break time.
Postpublished at 17:28 British Summer Time 19 June 2018
17:28 BST 19 June 2018Murray 6-2 6-5 Kyrgios
A competitive service game is closed out by Andy Murray with an ace. The Scot heads straight to his seat and takes a few gulps of a cloudy lemon drink before a few hearty bites of an energy bar.
Game, set and match - Kvitova beats Kontapublished at 17:25 British Summer Time 19 June 2018
17:25 BST 19 June 2018Konta 3-6 4-6 Kvitova
It's all over in Birmingham with British number one Johanna Konta losing 6-3 6-4 to defending champion Petra Kvitova.
Konta struggled throughout the match, throwing in seven double faults, and was soundly beaten by the two-time Wimbledon champion.
It was a miserable day for British tennis fans at the Nature Valley Classic as earlier Heather Watson lost 7-6 (7/2) 7-5 to Ukraine's Lesia Tsurenko.
Happy hunting ground for Murraypublished at 17:24 British Summer Time 19 June 2018
17:24 BST 19 June 2018Murray 6-2 5-5 Kyrgios
If Andy Murray wanted to pick an ideal venue and tournament for his comeback then the Queen's Club Championships would probably be up there.
The Scot has won the event five times between 2009 and 2016 - more than any other player in its history. This is familiar territory then.
Game 10 in the second set and Murray twice strikes the net with backhands as Nick Kyrgios reverts to something more routine to hold serve. 5-5.
'Extraordinary Murray'published at 17:22 British Summer Time 19 June 2018
17:22 BST 19 June 2018John Lloyd
Former GB Davis Cup captain on BBC TwoAndy Murray is looking like someone who has been playing week-in, week out. It's quite extraordinary really. I don't think anyone expected this.
Postpublished at 17:21 British Summer Time 19 June 2018
17:21 BST 19 June 2018Murray 6-2 5-4 Kyrgios
Andy Murray's service game is standing up well under pressure here. At 15-30 he wins the next points including a delicious drop shot.
"Let's go" he roars with a pumped fist after serving out an ace to win the game. Impressive stuff.
What can we expect from Kyrgios now?
'Murray a unique talent'published at 17:17 British Summer Time 19 June 2018
17:17 BST 19 June 2018Andrew Castle
BBC Sport tennis commentatorWe have some good players in this country but none like Murray. If he'd have been playing in a normal generation - without Federer, Nadal and Djokovic - he would be in double figures of Grand Slams.
Murray breaks backpublished at 17:17 British Summer Time 19 June 2018
17:17 BST 19 June 2018Murray 6-2 4-4 Kyrgios
Brilliant stuff from Andy Murray as he capitalises to break Nick Kyrgios' serve. The enigmatic Aussie is back to muttering to himself again.
Postpublished at 17:16 British Summer Time 19 June 2018
17:16 BST 19 June 2018Murray 6-2 3-4 Kyrgios
A long rally at the start of the eighth game in the second set and the crowd are on their feet as Andy Murray, at full stretch, wins the point with a superb backhand.
Nick Kyrgios responds with some giant serves but at 40-15 makes two unforced errors.
Deuce.
'Murray ahead of schedule'published at 17:12 British Summer Time 19 June 2018
17:12 BST 19 June 2018John Lloyd
Former GB Davis Cup captain on BBC TwoThe crowd probably don't know quite what to make of Kyrgios' performance but for Murray they will be thinking he's ahead of schedule in his return.
Postpublished at 17:12 British Summer Time 19 June 2018
17:12 BST 19 June 2018Murray 6-2 3-4 Kyrgios
The contrast in styles between the two players could not be greater.
Nick Kyrgios advances up the court during Murray's serve but the Scot is unflappable to the Aussie's antics. Murray holds serve.
Postpublished at 17:09 British Summer Time 19 June 2018
17:09 BST 19 June 2018Murray 6-2 2-4 Kyrgios
Andy Murray's return to another rocket of a serve from Nick Kyrgios is high. The Aussie emphatically volleys into the vacant half of the court. Kyrgios then wins the game with a beautiful cross-court forehand to hold serve.
'It's fantastic that he's back'published at 17:07 British Summer Time 19 June 2018
17:07 BST 19 June 2018Andrew Castle
BBC Sport tennis commentatorNadal and will Federer wil be taking note of this performance, and so will the rest of the tour, because I suspect most thought that it was over for Murray, but now I am optimistic.
It's fantastic that he's back.