Claim: Kostas Tsartsaris spent most of his career with the Greek League team Panathinaikos, owned by the billionaire Giannakopoulos family.
Evidence: 2000–01 2001–02 Peristeri 2002-03 2003–04 2004–05 2005–06 2006–07† 2007–08 2008–09† 2009–10 2010–11† 2011–12 2012–13 Panathinaikos It is owned by the billionaire Giannakopoulos family.