Dina Asher-Smith refuses to believe Florence Griffith Joyner’s 34-year old 100 metres world record is untouchable.
On the eve of her first race of the year in the UK, at today’s Birmingham Diamond League, Britain's fastest ever woman insisted “nothing is impossible”.
Griffith Joyner’s record of 10.49 seconds has stood alone since 1988 but Olympic champion Elaine Thompson-Herah clocked 10.54 last summer.
