You probably know about the bin challenge at this stage, but if you don't, it's where players keep a football in the air with their head for as long as possible and then nod it into a bin.
If my explanation hasn't really sold you on the idea, then watch this attempt by the players at Scottish club St Johnstone.
https://twitter.com/DyanEaston31/status/616908713526456320/video/1
