Matt Slater
BBC Sport at the Tour de France

Image source, Getty Images

Two years ago in Nice, Orica-GreenEdge stormed to a brilliant team time trial victory that put Simon Gerrans in yellow, tied on time with team-mates Michael Albasini and Daryl Impey.

Today, the team's six survivors were the first down the ramp and their primary goal must be to stay in front of Bretagne - Seche Environnement, the wildcards starting five minutes behind them.

Gerrans, Albasini and Impey have all left the race with broken bones after that dramatic crash on Monday, and Michael Matthews has struggled on with two broken ribs. Some think he may struggle to make the time cut today, as it is based on a percentage of the winning time, although there is a suggestion the race organisers will turn a blind eye given the relative lateness of this team time trial in the race schedule, Matthews' brave ride and the opportunity for recovery in Monday's rest day.

Either way, today will hurt him and his team-mates. A lot.

BBC Radio 5 live sports extra

There will be live commentary from Simon Brotherton and Rob Hayles on BBC Radio 5 live sports extra (and this website) from 15:00 BST.

Rob and Si have sent in their predictions for the team time trial, along with roving reporter Matt Slater.

Rob is going for BMC to win the stage and Chris Froome to retain the yellow jersey.

Simon is saying Movistar and Froome.

Matt is predicting a close-run thing but has picked BMC to have the perfect day by winning the stage and putting Tejay van Garderen into yellow.

Image source, Tour

John McHugh: In position as the clouds start to part for #letour2015 #Stage9 #timetrial #bbccycling, external

Yellow Jersey
Classification

So, if Tinkoff-Saxo go 12 seconds quicker than Sky, super Slovakian Peter Sagan will take the yellow jersey (and Alberto Contador, one of Chris Froome's main rivals for the overall win, will reduce his 36-second deficit).

If BMC go 14 seconds faster than Sky, American Tejay van Garderen will take the Maillot Jaune.

A less likely scenario of Lotto-Soudal beating Sky by 27 seconds (and the other two by the required margin) would put a Frenchman in yellow - Tony Gallopin.

Yellow Jersey
Classification

1 Chris Froome (GB) Team Sky 31hrs 01mins 56secs

2 Peter Sagan (Svk) Tinkoff-Saxo +11 secs

3 Tejay van Garderen (US) BMC Racing +13secs

4 Tony Gallopin (Fra) Lotto-Soudal +26secs

5 Greg van Avermaert (Bel) BMC Racing +28secs

The first three teams are out on the course and the rest follow at five-minute intervals.

14:00 Orica-GreenEdge (Adam & Simon Yates)

14:05 Bretagne Seche Environnement

14:10 Lampre-Merida

14:15 FDJ

14:20 Europcar

14:25 Bora-Argon 18

14:30 Lotto-Soudal (Tony Gallopin)

14:35 IAM Cycling

14:40 MTN-Qhubeka (Steve Cummings)

14:45 LottoNL-Jumbo

14:50 Trek Factory Racing

14:55 Astana (Vincenzo Nibali)

15:00 Cannondale-Garmin

15:05 Cofidis

15:10 Katusha

15:15 Movistar (Alex Dowsett, Nairo Quintana)

15:20 Giant-Alpecin

15:25 Ag2r La Mondiale

15:30 Etixx - Quick-Step (Mark Cavendish)

15:35 Tinkoff-Saxo (Alberto Contador, Peter Sagan)

15:40 BMC Racing (Tejay van Garderen)

15:45 Team Sky (Chris Froome plus Geraint Thomas, Luke Rowe, Ian Stannard & Peter Kennaugh)

Image source, Tour de France

Read Geraint's stage-by-stage guide: "The tactics for a team time trial are simple: ride as fast you can and get the fifth guy over the line as quickly as possible because that is when the clock stops and all the riders in your team get credited with that time.

"It's a bit different to a normal team time trial because the profile is quite lumpy, and after eight days of hard racing there'll be a few teams who don't start with nine riders but six or seven. When you have to finish with five that will make it harder again."

Rob Hayles
Former GB cyclist on BBC Radio 5 live sports extra

Just driven today's team time trial route. Glad I was in the car. Let's just say it's a 'sporting course'. Big big crowds pretty much most of it too.

Image source, Getty Images

Orica-GreenEdge was the last squad to win a Tour de France team time trial, two years ago, but their chances of repeating that today are pretty slim.

They have had a torrid opening week and were first down the ramp at 14:00 BST.

Simon Gerrans, Daryl Impey and Michael Albasini have all abandoned, while Michael Matthews is soldiering on after breaking ribs in a crash on stage three and is last in the standings - the Lanterne Rouge.

Britain's Adam Yates, who rides for the Australian-based team, is putting a brave face on it.

He told BBC Sport: "We're down to six guys. five guys and one guy pretty bunged up. we'll do what we can and hope for the best."

Hello and welcome to live text and radio commentary of stage nine of the 2015 Tour de France.

Britain's Chris Froome retained the yellow jersey on Saturday after finishing eighth, 10 seconds behind stage winner Alexis Vuillermoz - the first French victor of this year's race.

No time to dwell on stage eight though. We are off and cycling with a 28km team time trial from Vannes to Plumelec.

Image source, Getty Images

Race leader Chris Froome's assessment of Saturday's stage eight: "It's another day we can tick off. The guys did a great job again bringing me in to the final climb at the front.

"I was quite surprised to hear I gained time on Vincenzo Nibali. Hopefully we've kept something in reserve for Sunday's team time trial."