Image source, PA Media

The 2024 champions are halfway there to another title.

In a set that doesn't produce a single break point, Harri Heliovaara and Henry Patten get the job done in the tie-break, winning it 7-4.

Todd Woodbridge
Former Wimbledon doubles champion on BBC One

It was always going to be tough [for Heliovaara] because of the small delay. And he is the server who is more likely to be thinking about what has just happened.

A double fault from Heliovaara, but Patten then fires a voilley at the net and that is 6-3, three set points for Heliovaara and Patten.

Harry Poole
BBC Sport at Wimbledon

It's not quite as hot as it has been over recent days, but it's still very toasty - especially for those sat in the direct sunshine on Centre Court.

We have a brief pause in play as a spectator who has taken unwell is assisted out to warm applause from the crowd.

A double fault from the Arevalo/Pavic duo gives Heliovaara and Patten a 5-2 advantage, needing only two more points, before a brief pause in play as a spectator needs medical attention.

An ace from Henry Patten makes it 4-1, three points away from the first set.

And more sharp reactions at the net from Heliovaara gives his pairing a 3-1 advantage and a slight advantage.

Heliovaara punches away a volley at the net to leave his pairing at 2-1 ahead in the tie break.

We have a tie-break after Mate Pavic holds to love.

Chris Bradnam
Commentator on BBC One

This match hasn't seen one break point yet. The closest was deuce on Pavic's opening service game, but other than that it has been comfortable holds.

Harry Poole
BBC Sport at Wimbledon

It's been brilliant serving by both teams so far. If they're going to keep this up, you can't see this match being decided by anything other than two, if not three, tie-breaks.

There are plenty of 'oohs' from the crowd as both teams continue to fire in winners - and also whenever they go quite close to accidentally hitting their opponents as they end up in close quarters at the net.

You wouldn't like to be on the receiving end of one of those overheads the way these guys are hitting, that's for sure.

A cushioned volley at the net from Harri Heliovaara seals a hold to love off Henry Patten's serve. Marcelo Arevalo has already held his serve to keep the set going, now Mate Pavic has to do the same.

Todd Woodbridge
Former Wimbledon doubles champion on BBC One

He has got a better rhythm on his serve today [Henry Patten]. Good ball toss and really hitting his spots.

No joy from Heliovaara and Patten as their opponents hold their serve when needed. A fist pump from Arevalo and Pavic and the first set continues. Looks like we'll be heading to a tie-break.

A hold to 15 from Heliovaara, sealing the job with an ace. The cameras have already spotted a few famous faces in the crowd, including television presenter Davina McCall and film actress Jodie Foster.

Not been close to a break of serve yet, but if Heliovaara and Patten can take out Arevalo's serve next up then the first set is theirs.

Heliovaara and Patten take the opening point of the eighth game, but they can't build on that as left-hander Mate Pavic produces two superb outswinging swerves for aces down the middle.

As John says, not a hint of a break point yet, and the seventh game follows the same pattern with Henry Patten holding to love. It is a hot, hot afternoon and a cloudless sky. Both Patten and Harri Heliovaara instantly put ice towels on around their necks in an attempt to keep cool at the changeover.

John Lloyd
Former GB Davis Cup captain on BBC One

It is tough to see beyond tie-breaks, really.

You never know with a double fault or a mistake in the wrong moment, but it is hard to see where the breaks are going to come from.

Halfway through the opening set and still on serve. Mate Pavic produces a double fault in his service game, the first of the match, but that is the only point his pairing concede in the sixth game.

Todd Woodbridge
Former Wimbledon doubles champion on BBC One

So important you build for the return game. If you can snag the first point it puts the pressure on.