Career
Supposedly, in 2000 Diak also played for the Russian club Football Club Nemkom Krasnodar in the Russian Second League. Diak became the second highest scorer after Serhiy Chuichenko when he scored 21 goals for Football Club Shakhtar Makiivka during the 1995-1996 Ukrainian First League season. In 2000-2007 Diak also participated in futsal competitions playing for several futsal teams out of the Donbas region.