Let's start with the goalkeeper: why are you making that pass?
And then the defender: why are you making that pass?
But again defender: you can't pass it better than that?
And the goalkeeper once more: are you the least coordinated person on earth?
That is how you put together an own goal for the ages. You make several bad decisions, execute them even worse than you thought them up and do so in a fashion that leads some to question if you have an ounce of athleticism. Sports, you are a wonderful gift to us all.