When a footballer puts his foot in it

Terry sitting with Perroncel and Bridge
at a football game in  2007

So by now, everyone has heard about the many indiscretions of the big sporting stars like Tiger Woods and Wayne Rooney, but one of the major controversies that rocked the England Football Team right before the World Cup 2010 involved captain John Terry. Discovered by the Daily Mail of the UK in January 2010, Terry had started an affair with French Model Vanessa Perroncel,  but that wasn't the worst of it. Perroncel was the girlfriend of England defender and team-mate Wayne Bridge and within months of starting the affair, Terry paid for an abortion. It is also well known that the model and Terry's wife, Toni were good friends. although now, this relationship is seen to be tense, with Toni telling Vanessa "Call yourself a friend? What sort of friend sleeps with their mate's husband?'
This isn't the first nor will it be the last scandal that will come to light, why can't footballers keep it in their pants?