GB MAGNIFICENT SEVEN
1. Adam Peaty (Swimming)
Defending 100m breaststroke champion and world record holder Peaty hasn't lost a race for seven years going into the Olympics.
2. Dina Asher-Smith (Athletics)
Asher-Smith is Britain's best hope of gold on the track and is the world 200m champion as well as the British record holder.
3. Max Whitlock (Gymnastics)
Five-time Olympic medallist Whitlock will be going for gold again after a double victory in Rio, which made him our most successful gymnast ever.
4. Alex Yee (Triathlon)
Yee has big shoes to fill after replacing Olympic champion Alistair Brownless, who won gold in the triathlons at London and Rio.
5. Laura Kenny (Track Cycling)
Britain's most successful female Olympian is back again - and she's looking to add three more golds to her medal tally.
6. Jason Kenny (Track Cycling)
Laura's husband needs just one more gold to overtake Chris Hoy to become our greatest ever Olympian.
7. Katarina Johnson-Thompson (Athletics)
Although the Liverpool-born heptathlete is returning from injury, she insists she's back to 100% physically and ready to challenge for gold.