Why not taking their short off, would be much funnier.
I think this is a stupid law (i can't list here all stupid laws as it would takes me days and days of tapewriting, lol). Afterall football is a sport, with much stress at its higher level tho, let the players do what they want.
For example takes Makelele, he has no trouble with his shirt as he never goals, lol. He's my favorite player anyway.
Go Makelele, go...