<Tr> <Td> </Td> <Td> 2004 Athens </Td> <Td> Doubles </Td> </Tr> <P> Ivan Ljubičić (Croatian pronunciation: (ǐv̞an ʎûbitʃitɕ); born 19 March 1979) is a retired Croatian professional tennis player . He reached a career - high Association of Tennis Professionals (ATP) world No. 3 singles ranking on May 1, 2006 . His career highlights include reaching a Grand Slam semifinal at the 2006 French Open, and a ATP World Tour Masters 1000 title at the Indian Wells Masters in 2010 as well as 3 other finals, 2 of them coming in 2005 at Madrid and Paris, and the other at the Miami Masters in 2006 . </P> <P> Since retiring, Ljubičić has coached ATP top 3 players Milos Raonic and Roger Federer . He was credited with Federer's improved backhand, especially evident on high shots, and tactical change of taking shots much earlier, taking more time, pace, and rhythm off his opponents at the same time making his overall game more offensive . </P> <P> Ljubičić turned pro in 1998 . During his career, he achieved his best results in indoor tournaments played on carpet or hardcourt . He reached consecutive indoor Masters finals in 2005 at Madrid and Paris, the 2 most prestigious indoor tournaments in the world, losing both of them in 5 sets . Ljubičić and Mario Ančić are only the third doubles team ever to defeat Bob and Mike Bryan in Davis Cup history, the other teams being France's Arnaud Clément and Michaël Llodra, Brazil's Marcelo Melo and Bruno Soares and Serbia's Nenad Zimonjić and Ilija Bozoljac . Ljubičić helped Croatia win the 2005 Davis Cup, their first ever title, where they triumphed over the Slovakian Davis Cup team in the final . He qualified for the year - end Tennis Masters Cup in 2005 and 2006 . </P>

Who is the current coach of roger federer
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