DAY TWO HIGHLIGHTS

- Katarina Johnson-Thompson competes in four events on first day of heptathlon, won last time by Jess Ennis-Hill in Beijing (hurdles 10.05, long jump 11.30, shot put 19.00, 200m 21.00).

- Olympic champ and world record holder Wayde van Niekerk goes in the 400m heats.

- Flying Scot Laura Muir in 1500m semi-final action

- Usain Bolt goes in 100m final (semi-final at 19.05)