Fallen caps, untucked jerseys and rain regulations - what are the weirdest rules in sport?

Following on from the bizarre two-touch penalty drama in the Champions League, our writers pick the oddest rules across the sporting world

Fallen caps, untucked jerseys and rain regulations - what are the weirdest rules in sport?
Following on from the bizarre two-touch penalty drama in the Champions League, our writers pick the oddest rules across the sporting world