That there is a penis. It's Peter Beardsley's penis to be exact. You can see his balls too.
My penis once fell out of my shorts while running a cross country race in high school. I found it mildly arousing. It happens. Penises like to be out in the open.
Point being, if it could happen to Peter Beardsley and your pal cobra, brah!, it could happen to you
Should curiosity get the best of you, here's a comprehensive list of footballers whose penises and/or balls have become exposed during play as generously compiled by members of a Southampton FC message board. The url is also pretty damn good. You're doing the lord's work, lads.
Anyways, semifinal are Tuesday and Wednesday. I'll post an update before the finals. Vincent Tan's lead continues to shrink, like a cold penis.