![Croatian Mario Ancic serves during his quarter-final match with Roger Federer of Switzerland at the French Open at Roland Garros in Paris, France on June 6, 2006. Federer advanced to the semi-finals Croatian Mario Ancic serves during his quarter-final match with Roger Federer of Switzerland at the French Open at Roland Garros in Paris, France on June 6, 2006. Federer advanced to the semi-finals](https://c8.alamy.com/comp/TYXRF4/croatian-mario-ancic-serves-during-his-quarter-final-match-with-roger-federer-of-switzerland-at-the-french-open-at-roland-garros-in-paris-france-on-june-6-2006-federer-advanced-to-the-semi-finals-with-a-straight-sets-victory-upi-photo-david-silpa-TYXRF4.jpg)
Croatian Mario Ancic serves during his quarter-final match with Roger Federer of Switzerland at the French Open at Roland Garros in Paris, France on June 6, 2006. Federer advanced to the semi-finals
![Mario Ancic (Kroatien) Vorhand Tennis Herren US Open 2002, ATP Tour, Grand Slam, Hartplatz, Hardcourt, Mario Ancic (Kroatien) Vorhand Tennis Herren US Open 2002, ATP Tour, Grand Slam, Hartplatz, Hardcourt,](https://www.imago-images.com/bild/sp/0000715879/w.jpg)
Mario Ancic (Kroatien) Vorhand Tennis Herren US Open 2002, ATP Tour, Grand Slam, Hartplatz, Hardcourt,
![Novak Djokovic (centre) practises at Wimbledon flanked by Mario Ancic (L) and Andre Agassi (R); Getty Images | Tennismash Novak Djokovic (centre) practises at Wimbledon flanked by Mario Ancic (L) and Andre Agassi (R); Getty Images | Tennismash](https://tennismash.com/wp-content/uploads/2017/07/Team-Djokovic-at-Wimbledon.jpg)
Novak Djokovic (centre) practises at Wimbledon flanked by Mario Ancic (L) and Andre Agassi (R); Getty Images | Tennismash
![Swiss Roger Federer shakes hands with Croat Mario Ancic (L) at the end of their third round match at the French Open tennis tournament in Paris, May 31, 2008. Federer won 6-3, Swiss Roger Federer shakes hands with Croat Mario Ancic (L) at the end of their third round match at the French Open tennis tournament in Paris, May 31, 2008. Federer won 6-3,](https://c8.alamy.com/comp/TYY1YP/swiss-roger-federer-shakes-hands-with-croat-mario-ancic-l-at-the-end-of-their-third-round-match-at-the-french-open-tennis-tournament-in-paris-may-31-2008-federer-won-6-3-6-4-6-2-upi-photoeco-clement-TYY1YP.jpg)