Matthew Henry
BBC Sport in Paris

La Defense is going off. It's a battle between the "Allez les Bleus" and "U-S-A" in the crowd.

A dream backhand from Vliegen off Dan Evans' serve and that makes it 5-4 to Gille/Vliegen. GB in trouble.

Steve Parry
Olympic bronze medal swimmer on BBC Radio 5 live

I was loving the performance that the guys put in this morning, they were so dominant. It all came from James Guy, who stormed ahead on the first leg, finishing a body length from everyone else. Now we know that all four of them are in form and on song which gives us huge confidence heading into the final tonight.

The Belgians go long, 4-4.

The Belgians win a third point in a row, 4-3 Gille/Vliegen.

Matthew Henry
BBC Sport in Paris

Where do you look? Roland Garros? Or La Defense Arena?

GB are big favourites for gold over here.

Sam Smith
Former British number one on BBC Red Button

The key to getting through this is key, solid first serves.

Murray and Evans had a great game plan and they need to stick to it.

Great Britain qualified for the final of the men's 4x200m freestyle relay earlier today, finishing first in their heat and ahead of the likes United States, France and Australia with a time of 7:05:11.

Team GB, made up of James Guy, Jack McMillan, Kieran Bird and Tom Dean, were the fastest team in qualifying from both heats combined.

From 3-1 up to 3-3 at the players switch around. Just as in round one, it is incredibly tight, tense and dramatic.

Remember, first to 10, you need to win by two points at least.

Another fine performance from France's Leon Marchand.

He has this arena in the palm of his hand time and time again.

Marchand advances to the final with the fastest time of the two semi-finals 2:08.11 seconds.

He'll have two finals tomorrow with a medal in the 200m butterfly also up for grabs.

It looked for a moment in the final 50m like he was on world record pace but, so clear of the field, Marchand opted to take his foot off the gas.

Japan's Watanabe Ippei is second and compatriot Hanaguruma Yu is third.

World champion Qin Haiyang of China is tied for fifth and misses out after failing to post one of the top eight fastest times!

Annabel Croft
Former British number one on BBC Radio 5 Live and BBC Sounds

I don't know how he did that! Andy Murray leant out of the way and it missed him by an inch. Great judgement.

The Brits lead 3-2 after a fine return from the Belgians.

A blaster from Vliegen, Andy Murray pulls the racquet out the way and it's a good call, 3-1 Evans/Murray.

An error from Sander Gille puts GB 2-1 ahead.

Annabel Croft
Former British number one on BBC Radio 5 Live and BBC Sounds

It is anyone's match this now. Both the Belgians and the Brits have a chance to take the win.

A really good serve from Vliegen, Murray returns long, 1-1.

Andy Murray is poised to spring up at the net and smash away a winner, 1-0 Evans/Murray.

Sam Smith
Former British number one on BBC Red Button

Better numbers from the Belgians. They are getting more points after the first serve, but they should be out of it by now.

Just as in their first-round match, Dan Evans and Andy Murray go to a 10-point match tie-break to decide the outcome of the match.

Like a normal tie-break, but up to 10 instead of seven. You need a two-point winning margin. In round one, Evans and Murray saved five match points and came from 9-4 down to scrape past the Japanese pair of Taro Daniel and Kei Nishikori.

What has this match tie-break got in store for us? Remember, this could be the last 30 minutes or so of Andy Murray's tennis career.

Andy Murray has a stern word with the umpire after a certain missed let call from the umpire, the Scot said: "Mate, you have got to hear that it is so obvious!"

Image source, Reuters