[Eurofooty]

Interestingly, the Australian Football Leagues three field umpires are mic'ed up as well.

It was also tried on a number of players but the constant grunting (from exertion) was seen as a distraction to the enjoyment of the game.

[smallblacksun]

I remember reading that a center in the NFL had been mic'd and that he said "fuch" an absurd number of times during the game (three or four hundred).