Only Vanja Udovicic

Vanja is a professional Serbian water polo player.
wikipedia says:
Since 2007, he's been playing defense for Italian club Pro Recco where he arrived after playing two seasons for Circolo Nautico Posillipo from Naples. He started his career in water polo club Partizan from Belgrade and then moved on to VK Jadran from Herceg Novi.
In June 2010, Pro Recco club leadership served Udovičić with an ultimatum in an effort to force him to switch his national team allegiance and start playing for the Italian national team. He refused, choosing to continue playing for the Serbian national team. As a result, Pro Recco terminated his contract.^[1] His decision to remain loyal to his country resulted in a wave of positive reaction in the Serbian press, while Serbian Water Polo Association president publicly thanked Udovičić for refusing to cave into the Italian pressure.^[2]
Following the 2010 European Championship that was held in Zagreb, the representatives of local club HAVK Mladost approached Udovičić about joining their club. On 16 September 2010, he was unveiled as the new the club's new acquisition on a one-year contract.
With Serbian national team he has won gold on World Championship in 2009, 2005, European gold in 2003 and 2006, European gold for juniors in 2000 and Olympic silver in 2004.