captain kelly brown. he has been speaking to our reporter lydia campbell, who also has a stammer, about how sport can help to build communication skills. commentator: applause from the crowd, it's - all scotland can do. kelly brown is through. i'm kelly brown, former scotland rugby captain, and i've got a stammer. like me, kelly is one of the estimated 1.5 million adults in the uk who have a stammer, a neurological condition that makes it physically hard to speak. but kelly also rates the highest level of his sport, and having a stammer was never an issue when playing rugby. i started playing when i was about five, every sunday i'd go down to the club and all my mates were there, and we got to go out and throw a ball around and have fun, and so it was never even an issue, it wasn't even a part of the conversation. it was just a part of me and no one cared, and everyonejust accepted it. when i was growing up, really struggling with my speech,