A third love hold on the bounce for Felix Auger-Aliassime.

Novak Djokovic just waves at the ace to clinch it as it flies past him.

Too soon to call another tie-break?

Leon Smith
GB Davis Cup captain on BBC Radio 5 Sports Extra and BBC Sounds

Djokovic is looking really relaxed now.

Todd Woodbridge
Former Wimbledon doubles champion on BBC One

When Felix Auger-Aliassime does start to go off a little in a match it is on his forehand side.

It might be his dominant side, but at times he will find a bit of the frame or a mis-hit and that's when his levels or concentration start to change.

Image source, Getty Images

Another slip from Novak Djokovic early in his latest service game but this time Felix Auger-Aliassime can't take advantage, putting an attempted drop shot into the net.

The Canadian gets to 30-30 - the closest either player has got to a 'break opportunity' - but no further. A poor backhand into the net ends the game.

Djokovic holds once more.

Marion Bartoli
Former Wimbledon champion on BBC Radio 5 Sports Extra

Again, Novak is not happy about something, I don't know if it's the bounce or what. There's definitely something that he's not happy with on that end of the court though.

Tim Henman
Former British number one on BBC One

Felix Auger-Aliassime's first serve percentage has got better and better as this match has gone on. He is making 62% of his first serves now and winning 85% of them.

The second serve has been a bit more of a struggle, though.

Felix Auger-Aliassime is up to 10 aces now.

The big-serving Canadian is not giving Novak Djokovic even a sniff of a break at the moment.

Image source, Getty Images

Novak Djokovic holds with relative ease again.

The frustration for Felix Auger-Aliassime will be that, having got ahead at 0-15 thanks to a lucky net chord, he gets into rallies on the next two points but gets nothing from them.

Marion Bartoli
Former Wimbledon champion on BBC Radio 5 Sports Extra

If you're Auger-Aliassime, you're probably thinking, 'I've not done much wrong here'.

He hasn't. Djokovic somehow made his way on top of that first set.

Image source, Getty Images

Break chances were scarce in the first set and the way both men are serving, I can't see that changing.

Felix Auger-Aliassime holds to love.

A slip from Novak Djokovic allows Felix Auger-Aliassime to take the first point of the game but the seven-time champion soon takes over.

A beautiful drop shot and an ace help him get to 40-15 and after Auger-Aliassime flashes a forehand winner cross-court, Djokovic comes in behind a big serve to seal the hold.

Leon Smith
GB Davis Cup captain on BBC Radio 5 Sports Extra and BBC Sounds

The racquet head speed from Auger-Aliassime is just excellent.

Image source, Getty Images

We'll see how it goes as this match progresses but there is no sign of that calf injury that seemed to be troubling Novak Djokovic heading into the tie-break.

Felix Auger-Aliassime needs to put the disappointment of how that tie-break ended behind him quickly and he does, racing into a 40-0 lead on serve and holding to 15.

Emily Salley
BBC Sport at Wimbledon

Felix Auger-Aliassime will be furious with himself. He had most of the court to aim for there but he blasts it wide and gifts Novak Djokovic the first set.

There's an eruption of cheers and whistles to guide Djokovic back to his chair.

Marion Bartoli
Former Wimbledon champion on BBC Radio 5 Sports Extra

What an effort. I'm speechless again from Novak [Djokovic]. At 39-years-old just finding ways, somehow hanging in there.

Felix was on his knees in disbelief at that.

BBC One

You can watch the remainder of this quarter-final on BBC One or by clicking "Watch live" at the top of this page.

Todd Woodbridge
Former Wimbledon doubles champion on BBC Two

Oh my goodness! There is tension everywhere.

Novak Djokovic went out of his normal rhythm and took an extraordinary amount of time on the first serve and the second serve, but how well did he do to wrap the racquet around the ball with the bounce that it had?

Image source, Getty Images

Wow.

A running forehand volley from Felix Auger-Aliassime is well out and Novak Djokovic takes a marathon, enthralling first set.

He has to save, I think, three set points, but his will to win is unmatched.

Marion Bartoli
Former Wimbledon champion on BBC Radio 5 Sports Extra

This is unreal!

The second serve of Novak [Djokovic] went to the teeth. The return is shanked, Novak shanked him even more!