5 things you should know about Ivan Ljubicic

#4 He has a long rivalry with Roger Federer

The two played each other a number of times on court before Ljubicic turned coach to the Swiss

He might be his coach now, but Ljubicic and Federer were one-time rivals on the court – with an extremly one-sided rivalry! The two played 16 matches in total, with Federer leading their head-to-head record 13-3.

Over the course of his career, Ljubicic lost a total of four finals to Federer – and a number to his arch-rival Rafael Nadal!