![Argentina's Guillermo Coria returns a ball during the first round match against countryman Eduardo Schwank at the Mercedes Cup tennis tournament in Stuttgart, southern Germany, on Tuesday, July 8, 2008. (AP Photo/Daniel Argentina's Guillermo Coria returns a ball during the first round match against countryman Eduardo Schwank at the Mercedes Cup tennis tournament in Stuttgart, southern Germany, on Tuesday, July 8, 2008. (AP Photo/Daniel](https://c8.alamy.com/compfr/2p9xmnf/argentinas-guillermo-coria-returns-a-ball-during-the-first-round-match-against-countryman-eduardo-schwank-at-the-mercedes-cup-tennis-tournament-in-stuttgart-southern-germany-on-tuesday-july-8-2008-ap-photo-daniel-maurer-2p9xmnf.jpg)
Argentina's Guillermo Coria returns a ball during the first round match against countryman Eduardo Schwank at the Mercedes Cup tennis tournament in Stuttgart, southern Germany, on Tuesday, July 8, 2008. (AP Photo/Daniel
![Argentina's Eduardo Schwank reacts after he lost a point during the semifinal match against countryman Juan Martin del Potro at the Mercedes Cup tennis tournament in Stuttgart, southern Germany, on Saturday, July Argentina's Eduardo Schwank reacts after he lost a point during the semifinal match against countryman Juan Martin del Potro at the Mercedes Cup tennis tournament in Stuttgart, southern Germany, on Saturday, July](https://c8.alamy.com/comp/2P9XATD/argentinas-eduardo-schwank-reacts-after-he-lost-a-point-during-the-semifinal-match-against-countryman-juan-martin-del-potro-at-the-mercedes-cup-tennis-tournament-in-stuttgart-southern-germany-on-saturday-july-12-2008-schwank-lost-4-6-2-6-ap-photodaniel-maurer-2P9XATD.jpg)
Argentina's Eduardo Schwank reacts after he lost a point during the semifinal match against countryman Juan Martin del Potro at the Mercedes Cup tennis tournament in Stuttgart, southern Germany, on Saturday, July
![Eduardo Schwank of Argentina hits a ball against Spanish Carlos Moya during their match for the French Tennis Open in Paris May 25, 2008. Schwank upset Moya in five sets: 6-3, 7-6, Eduardo Schwank of Argentina hits a ball against Spanish Carlos Moya during their match for the French Tennis Open in Paris May 25, 2008. Schwank upset Moya in five sets: 6-3, 7-6,](https://c8.alamy.com/comp/TYY1G4/eduardo-schwank-of-argentina-hits-a-ball-against-spanish-carlos-moya-during-their-match-for-the-french-tennis-open-in-paris-may-25-2008-schwank-upset-moya-in-five-sets-6-3-7-6-2-6-7-6-6-4-upi-photoeco-clement-TYY1G4.jpg)
Eduardo Schwank of Argentina hits a ball against Spanish Carlos Moya during their match for the French Tennis Open in Paris May 25, 2008. Schwank upset Moya in five sets: 6-3, 7-6,
![Eduardo Schwank of Argentina returns a ball to compatriot Leonardo Mayer during their first round match at the Australian Open tennis championships in Melbourne, Australia, Tuesday, Jan. 18, 2011. (AP Photo/Andrew Brownbill Eduardo Schwank of Argentina returns a ball to compatriot Leonardo Mayer during their first round match at the Australian Open tennis championships in Melbourne, Australia, Tuesday, Jan. 18, 2011. (AP Photo/Andrew Brownbill](https://c8.alamy.com/comp/2NCD3JF/eduardo-schwank-of-argentina-returns-a-ball-to-compatriot-leonardo-mayer-during-their-first-round-match-at-the-australian-open-tennis-championships-in-melbourne-australia-tuesday-jan-18-2011-ap-photoandrew-brownbill-2NCD3JF.jpg)