Lleyton Hewitt & Kim Clijsters - MISS
Tennis' most high-profile couple split in October 2004 just four months before they were due to be married.
The Australian and Belgian hit it off when they met at the Australian Open in 2000, and got engaged in December 2003 on a romantic boat trip around Sydney Harbour.
Both former world number ones were regularly spotted supporting each other at matches, when their busy tennis schedules allowed, but their relationship still ended amicably after nearly four years together.
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