Amir Khan demolishes the 20 second speed ball challenge

We asked Amir Khan hit the speed ball as many times as he could in 20 seconds. How did the fastest hands in boxing get on? Subscribe to our 'BT Sport Boxing' YouTube channel ➡️ http://www.youtube.com/c/btsportboxing Twitter: http://twitter.com/btsport Facebook: http://www.facebook.com/btsport Instagram:http://instagram.com/btsport Website: http://sport.bt.com