▁S ams un sp or ▁On ▁ 6 ▁August ▁ 2 0 1 7 , ▁S if ak is ▁signed ▁a ▁year ▁contract ▁with ▁T FF ▁First ▁League ▁club ▁S ams un sp or . ▁On ▁ 1 0 ▁December ▁ 2 0 1 7 , ▁Mich alis ▁S if ak is ▁made ▁his ▁league ▁debut ▁for ▁S ams un sp or , ▁keeping ▁a ▁clean ▁sheet ▁in ▁a ▁ 0 – 0 ▁draw ▁away ▁to ▁Den iz lis por . ▁On ▁ 1 4 ▁May ▁ 2 0 1 8 , ▁he ▁mut ually ▁solved ▁his ▁contract ▁with ▁the ▁club . ▁ ▁International ▁career ▁In ▁ 2 0 0 4 , ▁S if ak is ▁was ▁called ▁for ▁the ▁Greece ▁national ▁under - 2 1 ▁football ▁team . ▁He ▁played ▁ 1 5 ▁games ▁with ▁the ▁U 2 1 ▁selection . ▁He ▁was ▁member ▁of ▁Greece ▁national ▁team ▁during ▁ 2 0 0 5 ▁FIFA ▁Confeder ations ▁Cup . ▁ ▁In ▁ 2 0 0 9 , ▁Greece ’ s ▁national ▁team ▁coach , ▁Otto ▁Re hh ag el , ▁invited ▁S if ak is ▁to ▁help ▁the ▁national ▁team ▁qual ify ▁for ▁the ▁South ▁Africa ▁ 2 0 1 0 ▁FIFA ▁World ▁Cup . ▁On ▁ 1 4 ▁October , ▁he ▁contributed ▁to ▁his ▁team ' s ▁victory ▁against ▁Luxemb ourg . ▁He ▁was ▁also ▁part ▁of ▁the ▁squad ▁for ▁the ▁final ▁tournament . ▁ ▁Under ▁coach ▁Fernando ▁Santos , ▁S if ak is ▁played ▁most ▁of ▁his ▁country ' s