Pedzisa mutsara unotevera: PaEuroBasket ya2007, Giannakis akatungamirira Girisi kusvika kunzvimbo yechina. Pa
2008 Beijing Summer Olympics, akatungamira Greece kunopedza nzvimbo yechishanu. Muna Zvita 2008, Giannakis akapedza basa rake semurairidzi mukuru wechikwata chevakuru cheGreek. Akabudirira mubasa iroro naJonas Kazlauskas.