Novak Djokovic is being made to battle for every point as Marin Cilic grows in confidence. At 15-30 the Serb correctly disputes a line call which went against him with Hawk-Eye and then backs it up with a mammoth serve before closing out the game.

This is comfortably the longest match of the tournament so far. Gruelling and gripping.

Image source, EPA

Image source, Getty Images

Petra Kvitova came back from a set down to beat Magdalena Rybarikova and retain her Nature Valley Classic title.

The 2011 and 2014 Wimbledon champion was made to work hard by the Slovakian after losing her first set of the tournament in Birmingham.

The Czech, 28, broke Rybarikova's serve twice in the second set and three times in the third to seal a 4-6 6-1 6-2 win.

The backboard at Queen's loudly thuds as another Marin Cilic ace is fired down. He holds his service game to love.

Novak Djokovic wins the game with a huge serve and unleashes a primeval roar. He desperately wants this title.

Image source, Reuters

Novak Djokovic serves an ace, but can only strike the net with his response to Marin Cilic's return.

Back to deuce.

Novak Djokovic with a scrappy service game. At 40-30 he strikes a low ground stroke into the net.

Deuce.

Marin Cilic follows with a near flawless service game of his own. The Croat jiggles his knees while sat during the change of ends. Novak Djokovic will be ready to seize upon any drop in standard, you sense.

An emphatic response from Novak Djokovic as he wins a service game to love. The Serb then dimissively flicks his unused balls back to the ball girl and then requests to dry his sweaty palms on a towel.

Ginny Donnelly: Great match but why isn’t the umpire penalising both players for their incessant bouncing? It’s getting ridiculous.

Marin Cilic backs up that tie-break win with confident service game - culminating in an ace - to edge ahead. The pressure back on Novak Djokovic now.

Michael John: Great final at Queen's! Some brave, brutal shots from Cilic in the second set tie-break.

John Lloyd
Former GB Davis Cup captain on BBC Two

Novak Djokovic got tight on his serve and was bouncing the ball so many times because of his nerves. There's doubt there now. Hope rather than a plan.

That's a great effort from Marin Cilic though but it was all in Novak's hands.

That's the first set that Novak Djokovic has lost at Queen's this week.

Brilliant from Marin Cilic as he serves deep into the court and then advances to the net to strike home a confident winner. One set all.

Grunts from both players in a rally which goes Marin Cilic's way on his serve as Novak Djokovic strikes his return into the net.

This match isn't over. Not by a long shot. Marin Cilic wins a mini break and defiantly punches the air.

A rare double fault from Novak Djokovic. All square again.

Wow! What speed and athleticism from Novak Djokovic. The terrier-like Serb somehow gets to the net and slices a return, but Marin Cilic is perfectly stationed to volley the ball into the empty court.

The Croat backs it up with another hold on his serve. Gutsy.

Novak Djokovic's serve is on song and he must surely close the match from here? Marin Cilic can only hit the second of his serves into the net.