Image source, Getty Images

Nine years have passed since Lizzie Deignan, then Armitstead, was Britain's first medallist in a torrential downpour at the London 2012 Olympics. It's fair to say there's been plenty of water under the bridge since then.

The Rio results sheet shows she finished fifth but the experience was about way more than the final result. In the run-up to Rio, Deignan was facing a one-year ban from the sport for missing three drugs tests.

The decision was later overturned by the Court of Arbitration for Sport and Deignan was free to ride - but not free from conjecture. "It was horrific to be accused of being a doper when it was the very last thing I would ever do," she told BBC Sport.

"It was hard to have yourself so publicly questioned. Lies can be written, and you have no control over it."

Deignan's Rio experience, motherhood & Tokyo Olympics.

Image source, Getty Images

The women's road race is just about getting under way.

The Dutch could and should win it. The difficulty comes when trying to predict which one of their all-conquering quartet will top the pile.

Amongst their number is Annemiek van Vleuten. Remember her? She was the Rio race leader poised to take gold only to suffer a sickening crash which saw her break bones in her back and spend 24 hours in intensive care. Incredibly she was back riding, and winning, the Tour of Belgium a month later.

Van Vleuten is as tough a talker as she is a rider. She has been outspoken about the Tokyo 2020 road race quotas. The women's race features just 67 riders compared with 130 in the men's. "That is just discrimination," she said.

Will Good: The Brits I’ve seen so far are looking very nervous and like the world is on their shoulders!! We needed a first medal of any colour today but it won’t come until Peaty tomorrow!

Jordan Dias: No other way to spin it then a really bad morning for Team GB at Tokyo 2020. Long way to go, plenty of other medal chances ahead, but Jones going out is a body blow, minutes after Murray.

Hayden Paul Davis: This is going to be Team GB's worst Olympics in terms of medals for over 20 years. You heard it here first.

We are back at Ariake Park for the men's street final.

Loads of backside, frontside, tailside fakies going on.

Japan's Yuto Horigome made a strong start in the first run with a score of 8.02.

But it's Brazil's Kelvin Hoefler who is top dog early doors with 8.98.

Who is Kimia Alizadeh, Jade Jones' conqueror?

Five years ago in Rio, she became the first Iranian woman to win an Olympic medal with -57kg bronze, standing alongside champion Jones on the podium.

Her 16-12 defeat of Jones today was not the first win she has recorded over the world number one, beating her en route to bronze at the 2015 World Championships.

But remarkably, today's fight was Alizadeh's first at international level since 2018.

She fled Iran in 2020 and the Iran Taekwondo Association has refused to allow her to represent another nation. She is competing for the Refugee Olympic Team in Tokyo.

Adam Zimmer: And there goes Ash Barty. Some big shocks today and its only 4:43am.

John Evans: Well done Jade Jones be proud of what you've achieved, and come back stronger in 3 (or 4) years!

Andy Murray withdraws from the singles, Jade Jones suffers a shock defeat and Ashleigh Barty goes out. What a huge hour in Tokyo.

That's a big shock in the tennis!

World number one and recent Wimbledon champion Ashleigh Barty is out in the first round.

She's been convincingly beaten by Spain's Sara Sorribes Tormo, who is having a very fine season on the WTA Tour.

Image source, Getty Images

Andy Murray's withdrawal leaves Liam Broady as the last Brit standing in the singles.

And in more positive news for folks back home, he's taken the first set over Francisco Cerundolo of Argentina.

Chris McLaughlin
BBC Scotland Sports News Correspondent in Tokyo

Double gold medallist Andy Murray was due to start his singles campaign today after an impressive opening day win in the doubles yesterday, with partner Joe Salisbury. The news came earlier in a statement from Team GB - and it was something of a shock.

He had said just a few days ago that he felt he was in with a chance. In today’s statement he said he was really disappointed but had to take the advice of his medical staff.

He was on good form yesterday in the doubles and he and his team clearly feel that is his best chance of securing a fourth Olympic medal.

World number one Ashleigh Barty is in trouble, and then some.

She now trails Sara Sorribes Tormo of Spain by a set and a break...

Nick Hope
Reporter on BBC TV

Jade Jones' chance of becoming the first British woman to win gold medals as three successive Olympics is over.

However, she may still have the chance to battle for a bronze medal later.

Olympic Taekwondo includes a repechage, which means all those who are beaten by fighters who reach the final are given a second chance.

Jade Jones' house mate and fellow taekwondo competitor Bianca Walkden reacts after the two-time Olympic champion is beaten by Kimia Alizadeh.

Adam Zimmer: Andy Murray withdraws and Jade Jones loses in the space of 10 minutes. Two Gold Medal hopes gone.

Matthew Day: Andy Murray pulls out of singles. Jade Jones out in the 1st round .This really isn’t going well for Team GB tonight.

Image source, Reuters

Andy Murray has been speaking about withdrawing from the singles.

"I am really disappointed at having to withdraw but the medical staff have advised me against playing in both events, so I have made the difficult decision to withdraw from the singles and focus on playing doubles," Murray said in a statement.

Wills: Jade Jones is eliminated in the first round. I’m in complete shock. What has just happened.

Jon: Shocking performances from us at these Olympics. Jade Jones out in round of 16. Shocking. No medals for us this Olympics.

Greg1975: Jade Jones eliminated in the first round. What a major disappointment for Team GB.

Where is Team GB's first gold medal going to come from?

Andy Murray withdraws from the tennis singles and Jade Jones is beaten at the first hurdle.

At least Adam Peaty is looking strong.

Incredible scenes in the Makuhari Messe Hall. Jade Jones looks stunned. What a huge shock. She won the first round 6-4 but lost the next two 6-2 6-4.

Two-time Olympic champion Jade Jones loses her round of 16 match with Kimia Alizadeh.

Andy Murray had been due to take on ninth seed Felix Auger-Aliassime of Canada on Sunday but was replaced on the order of play by Australian Max Purcell.

Murray had been upbeat about his prospects after an excellent doubles victory with Joe Salisbury on Saturday. But he has a muscle strain and was advised to compete in one competition only.