It's getting tighter. Hari Heliovaara wins two epic points back to back which both clip the baseline.

The first two set points are saved on Henry Patten's serve. Three more to go.

Henry Patten returns Jordan Thompson's serve into the net. Set point. Five of them.

Big cheers as the British-Finnish duo get on the board following a Patten reflex smash at the net.

Harri Heliovaara then challenges after his first serve is called out. If it's in it's an ace. Ah no, Hawkeye give the man a break. It stays out by the tightest of smidges and then Heliovaara errors a backhand on the next rally.

One-way traffic at the interval.

Peter Fleming
Seven-time Grand Slam doubles champion on BBC TV

When you're in a tight situation like this, all you can do is defend the net and force your opponent to hit a winner. Heliovaara couldn't do it.

Harri Heliovaara nets and then Henry Patten flicks a backhand out.

The home favourites are slipping.

A first mini-break as Henry Patten is snookered on the approach and flaps a shot long.

John Lloyd
Former GB Davis Cup captain on BBC TV

There may be one bit of inspiration here that can win the tie-break or if someone gets hold of a second serve.

Jordan Thompson holds to 15 so that means we go to a tie-break.

The Australians have lost just two points of serve.

The Aussies are trying to stamp out any glimmers of hope for Heliovaara and Patten.

Jordan Thompson smashes an overhead to take his team into a 30-0 lead.

Todd Woodbridge
Former Wimbledon doubles champion on BBC TV

Interesting to see with men's doubles these days - they serve so big so it's almost impossible to serve and volley. They stay back and wait for the forehand.

The crowd are on their feet after Henry Patten somehow gets to a lob and responds with a ridiculous chip of his own. Max Purcell can't believe it and is made to look silly, unable to scamper back to the ball.

Harri Heliovaara finishes off his service game and the pressure swings from the British-Finnish duo back on to the Australians.

Michael Emons
BBC Sport at Wimbledon

Image source, Michael Emons

After the earlier excitement of the three-set match in the women's singles final, with Barbora Krejcikova defeating Jasmine Paolini 6-2 2-6 6-4, a large number of fans have used the opportunity to get refreshed and stretch their legs.

But at each changeover, when the fans are allowed back to their seats, more and more fans are returning to watch the action.

I'd say we're probably about half full, but that will certainly improve as the match goes on.

I knew it was too good to be true.

Max Purcell wins four points in a row with more terrific big serving and we're level again after 29 minutes.

A few in the crowd get out their phones to snap a picture. The Australian pair have finally lost a point on serve after Jordan Thompson whacks a lob long.

Heliovaara/Patten are three points away from the first set.

Todd Woodbridge
Former Wimbledon doubles champion on BBC TV

No one is able to build any pressure at all in their return games.

Henry Patten serves again and it's another comfortable hold on Centre.

Nobody has built any pressure at all, it's like a feel-good confidence boosting serving training session.

Purcell/Thompson will serve to stay in the set.

John Lloyd
Former GB Davis Cup captain on BBC TV

There's not much you can do in the return area when the server is finding the spot. There are not any second serves available to be able to have a go at.

Four games from Purcell and Thompson and still no points lost on their serve.

Dominance that, pure dominance.

John Lloyd
Former GB Davis Cup captain on BBC TV

I wonder whether there is still a chance someone would do a chip return. There's not many who do it these days other than Max Purcell.