In all honesty, it's a wonder this hasn't happened more often.
Allow us to set the scene.
A defender is tracking back to protect his net as the opponents counter quickly. The ball comes into the box and the defender slides, either to knock the ball away or to discourage the attacker from crossing the ball into that particular spot.
Then, with the goalpost approaching, the defender continues to slide along the pitch until he collides with it. And the point of collision is, well, the family jewels.
This exact scenario played out in the Bundesliga over the weekend. The player in question was Borussia Dortmund defender Lukasz Piszczek, and, thankfully, he seems to be fine.
Piszczek was defending against Hannover's quick attack during the two teams' 1-1 draw. With Dortmund's keeper beaten and a Hannover shot seemingly destined for the net, Piszczek cleared the ball off the line and, it turned out, preserved the two-time defending champions' draw.
But it came at profound personal cost, and that personal cost forms the basis for Tuesday's Set Piece Video of the Day. We would say enjoy, but we know better than that.
So instead, just watch the video and keep in mind the dangers of defending valiantly. Next time your pub team is defending a lightning-fast counter, you might think twice about sliding in to clear off the line.
Oh, and if you're thinking that all this seems really familiar, there's a reason for that. The innovator of the form was former Liverpool defender Phil Babb, and he didn't even stop the goal from happening.
[h/t 101 Great Goals]