When you're making $20m-odd a year, you're going to have a decent crib - and these sports stars have some of the best and biggest around.

From Michael Schumacher's private island to Michael Jordan's mega-mansion, these global sporting icons have some of the craziest, most extravagant homes in the world.

Private 18-hole golf course - check that one off, helicopter pad - a must, full-size indoor and outdoor basketball courts - obviously, indoor batting cage - done.

Because let's face it - a king/queen needs their castle and when money is no object you're free to fulfil all your childhood dreams.

Bigger is obviously better, so we've compiled a list of five of the most ridiculous mansions owned by the world's biggest sporting stars.

Click through the slideshow to begin the countdown…

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