Breakthrough Moments: Hafnaoui wins gold in shocking upset
![Breakthrough Moments: Hafnaoui wins gold in shocking upset](https://ktvz.b-cdn.net/2021/07/oly20_swm400f_1560_chevymoment_210725.jpg)
NBC Olympics
Tunisia’s Ahmed Hafnaoui wins gold in the men’s 400m freestyle, pulling off a huge upset as the youngest swimmer in the field! For more moments like this, watch Tokyo Gold daily starting at 11 a.m. ET on Peacock.