Image source, Getty

Canada's Andre De Grasse took silver in the Rio 2016 200m final and bronze in that Games 100m, but has seen his progress since checked by injury. Could he be timing his return right for Doha and Tokyo? He has not gone sub 10 seconds since June 2017 though...

That is not a problem for Britain's European champion Zharnel Hughes. He was the fifth-fastest man of 2018 after clocking 9.91. He has ran 9.97 second twice in June and should be favourite to take this heat.

CJ Ujah - 2017 Diamond League winner over 100m -, Richard Kilty, Harry Aikines-Aryeetey and James Ellington are also repping GB.

Ellington is returning for the first time since a life-threatening motorbike accident.

Image source, PA Media

It looks like one of Daft Punk has got loose on the track.

Or maybe someone recreating the look of an MTV Award trophy, external?

Image source, Getty Images

Australian Kelsey-Lee Barber and Christin Hussong of Germany look to be the two to keep an eye on here after chalking up lifetime bests in excess of 66.50m this season.

Tatsiana Khaladovich of Belarus and Czech Nikola Ogrodnikova could make it a four-way scrap for the points.

Steve Cram
BBC Sport athletics commentator

Simbine looked very comfortable in the end but for a while it looked like Simbine and Blake might not have made it through.

South Africa's Akani Simbine wins in 10.01 with Yohan Blake second in 10.06 and Adam Gemili grabbing the last automatic qualification spot in 10.07.

Gemili will be pretty pleased with that I reckon...

Who is guilty this time?

Ojie Edoburun is the man under suspicion.

Yep, he is being ushered away from the blocks. He looks distinctly underwhelmed with himself and the officials' lack of discretion.

Image source, Getty

A punchy men's 100m qualification race.

Britain's Adam Gemili, who is getting his season back running after a hamstring tweak in May, is in the field. He gave an interview to The Sun earlier this week , externalexpressing his disappointment at being put on relay funding, rather than the full individual event whack, by British Athletics. He missed out on a 200m medal at Rio 2016 by only three thousandths of a second so perhaps he has a point.

Look out for Yohan Blake, still the joint-second fastest man of all time over the distance. That 9.69 burst back in 2012 feels a long time ago though. South African Commonwealth Games champion Akani Simbine also goes.

Paula Radcliffe
Women's marathon world record holder on BBC One

Jakob Ingebrigtsen showed his versatility and sheer talent. He was never beaten on that last lap.

He was kicking and trying to get past Gebrhiwet but if he'd waited a little bit maybe he'd have had a bit more left because he went early on that last lap.

What a superb finish.

Hagos Gebrhiwet holds off 18-year-old Jakob Ingebrigtsen in a titanic last-lap tussle.

The young Norwegian has claimed a national record though by way of consolation.

Great Britain's Andrew Butchart chalks up a personal best of 13:06.21 in fifth. Rhonex Kipruto was sixth.

Jakob Ingebrigtsen has gone hard and early. He leads with Hagos Gebrhiwet tracking him...

Jakob Ingebrigtsen is on Rhonex Kipruto's shoulder with two laps to go. Ethiopia's Hagos Gebrhiwet also involved...

Kenya's Rhonex Kipruto leads through 3200m with compatriot Nicholas Kimeli second and Hago Gebrhiwet third.

Andrew Butchart is fourth with Jakob Ingebrigtsen fifth.

Paula Radcliffe
Women's marathon world record holder on BBC One

The exuberance, talent and raw bravery Jakob Ingebrigtsen shows is always exciting.

There isn't that much willingness to take on the race at the moment. They are building into it.

Image source, Getty Images

The distance wonderkid of European athletics is here. Norway's Jakob Ingebrigtsen did the continent's 1500m-5000m double last year aged just 17.

He is mixing it with some of the world's best though here.

Ethiopia's Hagos Gebhiwet is the third fastest man of the year while Kenya’s Rhonex Kipruto is a similarly fast-rising star winning the world under-20 last year and chalking up a Diamond League win in Stockholm.

Great Britain's Andrew Butchart is the fastest European this year.

Image source, Getty

World champion Luvo Manyonga has reeled in long jump victory with a leap of 8.37m on his fifth attempt.

That beat Jamaica's Tajay Gayle who is second on 8.32m.

Image source, Getty

Greek Olympic champion Katerina Stefanidi is the cream of the pole vault field, even if she fouled out without registering a height in Lausanne.

American rival Sandi Morris is one of those resting up. Britain's Holly Bradshaw, whose season best of 4.72m matches Stefanidi's, is present though along with authorised Russia Anzhelika Sidorova.

Laviai Nielsen: "It is difficult to know how far behind you are when you finish like that. I am delighted. This is my favourite place in the world. It is a magical stadium."

Jamaica's Shericka Jackson and compatriot Stephenie Ann McPherson overhaul the fast-starting Laviai Nielsen in the final 40m.

But what a run from the Briton.

And it is a massive PB on the clock!

Nielsen breaks 51 seconds for the first time with a time of 50.83.

She is delighted!