To play in the Premier League a certain amount of physicality and robustness is required. However, some players go too far in this particular respect.
Today's game also requires a certain level of judgement in the tackle; forceful challenges aren't what they were, and some players struggle to control this side of their game.
Other players suffer from different disciplinary issues. They perhaps have too much to say to the officials, are too cynical in their approach to marking the opposition, dive or wave imaginary cards to give their team an advantage.
All of the above leads, ultimately, to red cards being dished out.
The English top flight's worst offenders are all listed in the quiz below. So, can you name the 20 players with the most red cards in Premier League history?