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

A big sigh of relief for Jemma Reekie, she ran with huge composure there.

She mixed up the way she normally races. She normally goes out harder and she is the one controlling it.

On the field, Sweden's Daniel Stahl currently leads the men's discus final with a best throw of 68.90m after three attempts.

A great run from Jemma Reekie to book her place in the 800m final.

She finishes second in her semi-final behind Jamaica's gold medal contender Natoya Goule.

The pair of them opened up a decent gap on the rest of the field.

It's time for the women's 800m semi-finals and Jemma Reekie, Alex Bell and Keely Hodgkinson go for GB.

Reekie is in the first semi-final, which is under way now.

Devestating for the Oly-Whites of New Zealand who have put up a proper fight in this game.

WHY ARE PENALTIES SO CRUEL?

But props to Japan. They will face Spain in the semi-final.

Meanwhile, it's still 1-0 to Brazil against Egypt with around five minutes to go, plus stoppage time.

And Mexico are leading South Korea 3-1 in Yokohama.

GB's Zharnel Hughes, CJ Ujah and Reece Prescod qualify for the men's 100m semi-finals.

Here's how Hughes did it.

Dame Jessica Ennis-Hill
London 2012 Olympic heptathlon champion on BBC TV

That is sport, it is so cruel and you have amazing highs but cannot control everything - you can be in the best shape of your life, ready to go, and just like that it's gone.

More from Dina Asher-Smith: "The most frustrating thing for me is that I was in really good shape, I was in the shape of my life. I can say that with my hand on my heart.

"If you would have asked me six weeks ago I was very confident I was going to win this being completely frank, because every part of my race, my start, my transition and my finish was better than some of the fastest women in the world, but you know when you get a hurdle like that everything rejigs, I had the low of being told I possibly wouldn't be here and then getting the 'oh there is a chance'.

"It has been a journey and I am honestly so proud to run 11.0 off a week's worth of sprint training because I spent a month trying to run again.

"I am going to pull out, and that is the one as reigning world champion and I was in such good shape you know that Olympic champion isn't that much of a further step.

"I am really proud to be able to execute my races to this point, but when you are talking about the standard that I want to be at, there is plenty more championships for me to come and kill.

"We are in the middle of a four-to-five year cycle and I got a hamstring tear at a really inconvenient time but it doesn't change the calibre of the athlete that I am and I know that if I want to showcase that I just need a few more weeks of power training a bit more speed endurance to fill that gap of when I was trying to walk again."

Cameron Tucker: Alexa, define brave: @dinaashersmith, external The stuff that woman is made of to get up there in front of the cameras and say what she’s been through is quite something. She’ll be back, better and stronger for Paris

Adam Thomas: @dinaashersmith, external - My heart breaks for you, but two things are for certain. The sun will rise in the morning, and YOU ARE A SUPERSTAR!!!

GB's CJ Ujah has booked his spot in the men's 100m semi-finals.

He finishes third in heat seven in 10.08, as Australia's Rohan Browning wins in 10.01. Jamaica's Yohan Blake is second.

Denise Lewis
Olympic heptathlon gold medallist on BBC TV

It is devastating and no-one wants to see an athlete like Dina pull out, but she will be back and if her hamstring is bad she is making the right decision.

It is part of your growth, understanding how you deal with that and how you come back. The pressure to pull out is always tough.

Another South African is through to the 100m semi-finals.

Akani Simbine wins heat six, and will be joined in the next round by Ivory Coast's Arthur Cisse and Brazil's Paulo Andre Camilo.

Michael Johnson
Four-time Olympic gold medallist athlete on BBC TV

This is difficult. Everyone is thinking, the big elephant in the room is keeping this a secret from the fans, who now may be thinking I could have taken myself down a bit, tempered myself.

At the same time, you have fans and they want to ride along with you - whether it's high or low, they want to support you.

Dina Asher-Smith, who missed out on the women's 100m final, speaking to BBC Sport: "Obviously I'm so disappointed not to make the final because this is Tokyo 2020, it's everything I've trained for fo the past two years.

"But the last few weeks of my athlete life have been absolutely insane.

"I wanted to come and be completely upfront with everybody on my form and life and just what has happened.

"I pulled out of both Stockholm and Gateshead because in the trials final, I actually pulled my hamstring at 60m, I tore it pretty bad and I was initially told in Manchester that it was a rupture and that I would require surgery and it would take three to four months to get back.

"It's been a lot to deal with because quite frankly, with that diagnosis, I just can't go to Tokyo, so we had this whole statement ready to go but then I thankfully went and got a second opinion and it was a slight misdiagnosis - even though there was still a tear, it wasn't a rupture, my hamstring was still attached, so we turned over every single stone to make sure I can stand on the line."

We are going to penalties here at the Ibaraki Kashima Stadium...

Howard Horner: Oh, Dina Asher-Smith, what an amazing human. To work so long and hard, and step up to that interview with that much grace and humour and strength. Seriously impressive stuff.

Jack: What an incredible role-model Dina Asher-Smith is! 11.0 after an injury is unbelievable, and what an eloquent interview - A total class act

"I've spent four weeks trying to run again," Asher-Smith tells the BBC.

She's in tears. This is heartbreaking.

Dina Asher-Smith is going to withdraw from the 200m and her Olympics is over.

She tells the BBC she tore her hamstring before the Games.

Third time lucky and they finally get away.

Canada's Andre de Grasse takes the win in 9.91 with Fred Kerley and Ferdinand Omurwa also through.

Reece Prescod is fifth in a season's best.