Athlete and fan safety front of mind amid heat fears, say Tokyo 2020 organisers

02:19

02:48

01:27

01:11

01:46

01:43

02:20

01:34

02:00

02:09

02:18

01:01

02:28

01:49

02:29

00:49

00:47

01:23

00:59

00:26

01:01

00:46

02:06

01:33

01:31

01:26

00:50

01:32

01:18

00:59

01:48

01:10

01:10

00:56

01:04

02:19

02:21

01:18

01:28

02:09

02:09

01:47

01:46

01:27

00:56

02:12

01:45

01:36

01:25

02:14

02:19

01:38

01:30

01:26

02:06

01:49

03:04

01:38

01:47

00:59

01:59

00:42

00:58

01:04

01:07

00:46

00:55

01:27

01:01

01:00

01:33

01:28

01:06

01:50

01:02