Eventing: GB's Tom McEwen adds individual silver to team gold
Fellow team gold medallists Oliver Townend fifth in individual and Laura Collett ninth
Weightlifting: GB's Emily Campbell wins silver in women's +87kg final
Athletics: Sifan Hassan beats Hellen Obiri to win 5,000m gold
Hockey: GB into women's semi-finals with shootout win over Spain
Gymnastics: GB twins Jessica sixth and Jennifer Gadirova seventh in floor final; Simone Biles to compete in beam on Tuesday
Track cycling: GB women team pursuit second in qualifying, men fourth fastest
Weightlifting: First openly transgender athlete Laurel Hubbard fails to record a successful lift
Women's 1500m heats
Ah, so close for Revee Walcott-Nolan, who just misses out on qualification for the semi-finals.
Laura Muir and Katie Snowden will both compete for a place in the 1500m final.
Women's 1500m heats
Nicely done by Katie Snowden.
A personal best of four minutes 02.77 seconds takes her through in sixth place.
Six women break clear for a relatively calm finish, and Faith Kipyegon takes the win.
A nervy wait for Revee Walcott-Nolan now to see of she will qualify as a fastest loser.
Women's 1500m heats
Faith Kipyegon makes her move to the front.
Katie Snowden follows and is in a good position on the outside as we reach the final 200m.
Women's 1500m heats
After a positive start, Katie Snowden settles in to the group ready for the big finale.
Kenya's Faith Kipyegon is following her closely.
A big group together still. Tense.
Women's 1500m heats
Laura Muir speaking on BBC One: "I'm so excited to get started. All my flatmates have raced already so I was really itching to get going. It was nice to get that first run out the way. I'm feeling comfortable.
"It's just a matter of being as well prepared as possible, I had a really good lead up to this and I felt really confident.
"It's nice to get stared. I'm more prepared than ever. Before, my speed was my weakness, but I've improved so much over the last couple years with that. I'm in the best shape I can be in, hopefully any situation I can deal with."
Women's 1500m heats
Katie Snowden contests this final women's 1500m heat.
Kenya's defending Olympic champion Faith Kipyegon joins her on the start line.
Women's 1500m heats
That comeback from Sifan Hassan though.
On the deck with 400m to go, and still winning the heat ahead of Australia's Jessica Hull and the USA's Elle Purrier St. Pierre.
Heat three up shortly...
Women's 1500m heats
GB's Revee Walcott-Nolan finishes in seventh position with a personal best time of four minutes 06.23 to give herself a good chance of progressing as a fastest loser.
Fingers crossed.
Women's 1500m heats
Never in doubt...
Sifan Hassan rescues a tricky situation, qualifying as the winner of heat two. Impressive.
Women's 1500m heats
Sifan Hassan is moving her way through the pack, climbing up to sixth with 150m to go...
Women's 1500m heats
Drama!
Sifan Hassan is down just as they reach the bell!
A big finish required here...
The women's hockey competition has reached the quarter-final stages and all four matches are taking place today.
The early game is under way and 0-0 between Argentina and Germany after the first quarter.
Australia take on India at 04:00 BST and Netherlands face New Zealand at 10:30.
Defending champions Team GB play Spain in the final last-eight tie at 13:00. The two sides met at this stage of the competition at Rio 2016, with the British team winning 3-1.
Women's 1500m heats
Revee Walcott-Nolan has a season's best of four minutes 06.28 seconds. Can she force her way through this heat?
Sifan Hassan, who has run 3:53.60 this year, is hanging well back and out of trouble, for now.
Women's 1500m heats
Paula Radcliffe
Women's marathon world record holder on BBC TV
Laura looks really good. Laura would've been itching to get out there, this a chance to stretch your nerves - to almost do a hard workout. She's been able to blow out those cobwebs, feeling good and getting a feel of how her rivals are around her.
Women's 1500m heats
Up next in heat two is GB's Revee Walcott-Nolan.
She's joined by Dutch athlete Sifan Hassan, who took gold in this event at the 2019 World Championships as part of her double - also winning the 10,000m.
The USA's Elle Purrier St. Pierre, the fourth fastest in the world this year, is also in this one.
Top six to qualify, plus the next six fastest across the three heats...
Women's 1500m heats
A sub-60 final lap sees Muir qualify in second place in four minutes 03:89 seconds, behind Gabriela DeBues-Stafford and ahead of Kenya's Winny Chebet.
Women's 1500m heats
The runners hit the bell and the pace whips up.
Laura Muir is sat in second on the shoulder of Canada's Gabriela DeBues-Stafford with 200m to go...
Women's 1500m heats
Laura Muir eases to the front with two laps to go.
The Brit is looking nice and relaxed, but the hard work starts here.
Women's 1500m heats
Here we go then. A first chance to see how Laura Muir is feeling at Tokyo 2020.
Heat one is GO!
Women's 1500m heats
Muir had the option of contesting both the 800m and 1500m events in Tokyo but made the "very hard decision" to drop the shorter distance.
"Two events was the original plan, but what I really want is a medal and the level of competition is so intense in the 800m," she told BBC Sport.
"I know I can be up there, but I'd hate to be mediocre at both and, while it was emotionally a tough decision to make, mentally it was clear to me that the 1500m is where I needed to be."