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Yiech Pur Biel fled Sudan to escape civil war. He spent 10 years in a refugee camp in Kenya, home to more than 179,000 people. 

“In the refugee camp, we had no facilities – even shoes we didn't have,” Biel says. 

“There was no gym. Even the weather does not favour training because from morning until evening it is sunny and hot.” 

Today Biel trains in the Kenyan capital Nairobi. While he is not expected to claim a medal in Rio, he says: “Even if I don’t get gold or silver, I will show the world that, as a refugee, you can do something.”

There will be no Olympic medal for Northern Ireland's Alan Campbell, however, after he missed out on a place in the sculls final.

Tom Fordyce
Chief sports writer at Estadio Olimpico, Rio

Image source, Getty Images

Defending champion Jessica Ennis-Hill got her heptathlon campaign under way in fine style on the first morning of competition.

Ennis-Hill ran 12.84 seconds in winning the fourth heat to give herself an early lead after the first of the seven events.

In damp, cold conditions her compatriot and rival Katerina Johnson-Thompson finished second in the third heat in 13.48 secs to lie 11th.

Brianne Thiesen Eaton, considered the main danger to the two Britons, lies sixth.

The hurdles are one of Ennis-Hill’s strongest events, and while this was down on the extraordinary 12.54 secs she clocked on the first morning in London four years ago, the wet track and consistent drizzle rendered this an excellent start.

Ennis-Hill does what Ennis-Hill does.

Wins.

Luke Reddy
BBC Sport in Rio

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Shooting is a tough one for commentators to stay across, especially at the qualifying stage where 21 athletes are spread over three ranges. 

It's a good job Rob Nothman at BBC 5 live has this screen to hand then. 

It's up to the minute and provides a decent chance for us to make sense of it all.

Darren Campbell
Former British sprinter on BBC Radio 5 live

Jessica Ennis-Hill will be really pleased with that time (12.84 seconds). The conditions are not great, it will be a bit chilly and so on reflection she will be pleased.

Rob Nothman
BBC Sport

Amber and Elena lie in a tie for fifth at the moment and that will be good enough for them to qualify.

Aleksey Cheremisinov throws back his head and roars with delight.

He has nabbed the crucial point to take a tight, cagey contest against Great Britain.

James-Andrew Davis can hold his head high. He won all three of his individual contests but it was not enough to wrestle the tie his way.

Luke Reddy
BBC Sport in Rio

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Off trots Elena Allen of GB, like Amber Hill she goes 23 of 25 in qualifying. A reminder there are 75 shots to be fired.

Allen has a moment of concern midway through the round as her shotgun double fires meaning some quick maintenance is needed. Her husband and coach Malcolm (pictured), takes it away for a quick fix.

Italian Diana Bacosi is the only athlete to card 25/25. The Britons are tied for sixth and six of 21 will qualify.

Alistair Magowan
BBC Sport in Rio

Teeming down at Lagoa now as everyone resorts to full rain gear, with many representatives taking shelter in the media centre. The BBC TV commentary team of Garry Herbert and James Cracknell are soldiering on under the tarpaulin. 

Tracy Barlow: Woah, miles ahead! Go Jessica Ennis-Hill

Antony Barton: Jess has landed

Neil Leverett: Ennis looks formidable early on.  

Alan Campbell just could not keep pace as the race hotted up over the final quarter.

New Zealand, Belarus and Belgium come home ahead of the Ulsterman who is heading into the B final.

Great Britain's Alan Campbell is out of the qualification spots as they head into the final 500m...

Jessica Ennis-Hill clenches her fist and gives the camera a thumbs-up after finishing first and in a time of 12:84 in her hurdles heat... 

That's faster than at the World Championships in 2015 where she went on to take the title. 

James Andrew Davis comes to the piste for the final bout of the team foil quarter-final with Great Britain 40-37 adrift of Russia.

Can he pull it out of the fire?

The home of Team GB rowing in Berkshire, the Leander Club, is getting ready for another medal haul today.