The most famous granny in the world?

Cape Town - Despite Wayde van Niekerk's gold medal - and world record run - in the 400m in Rio, there's only one person on everyone's lips...

Van Niekerk stunned the athletics world with his blistering 43.03 time in breaking Michael Johnson's 17-year-old record, but it's his 74-year-old coach, Ans Botha, who has stolen the limelight.

Botha has been coaching the Van Niekerk since October 2012 and has been credited widely as playing a large role in helping South Africa win their first gold medal in Rio.

Tannie Ans Botha - the most famous Grandmother right now https://t.co/MnK9tMTBAs via @YouTube

— TeamSouthAfrica (@teamsa16) August 16, 2016

I must go train with Tannie Ans Botha. Maybe she can help me lose all my baby fat! pic.twitter.com/MYG8KhSh5G

— Megan Wakefield (@megan_wakefield) August 16, 2016

Tannie Ans Botha coached a v young Frankie Fredericks & now the legend gets to hand over Olympic gold to @WaydeDreamer ??? ????

— Marcelle Gordon (@MarcelleGordon) August 15, 2016

Thank You to 73yr old Anna “Tannie Ans” Botha who coached #WaydevanNiekerk you believed in him before everyone else pic.twitter.com/Z3Lx0Aieas

— South African Heroes (@SA_Heroes) August 15, 2016

Just when we thought the #VanNiekerk story couldn't get any better: his coach, Ans Botha, 74 yrs young! pic.twitter.com/Lab1vqyHNa

— Gabrielle Amado (@gabbyamado) August 15, 2016