It spoils the flow of the game and really shows a lack of skill if that is the only way you can stop a player from scoring.
I have just seen these two things going on in the Euros and it is about time they were outlawed,because they have no place in football.
I,ve lost count of the number of games which Barrow have played in where it has gone on and it ruins the game as a spectacle.it was usually when Scott Quigley was heading towards the opposition goal these were the tactics that were adopted.
This is just my opinion but I would be interested to know what other people think as I think it has no place in the modern game and belongs in the playground.