http://www.dailymail.co.uk/sport/football/article-1261025/Bolton-star-Gary-Cahill-reveals-The-slightest-knock-blood-clot-killed-me.html?ITO=1490You have to just be thankful for how lucky he was that they caught it when they did. Fantastic footballer with a fantastic future of winning leagues, cups and international caps no doubt, but to think he had such a serious problem and everytime he was jumping for headers or even lifting his arm it could have killed him.
Side note: Fair play to John Terry. From someone who dislikes him so much, he wins a couple of brownie points with me.