Dee ihe na-aga n'ihu maka paragraf a - Na 2008 na 2012 Summer Olympics, ọ mpi maka mba otu na ndị ikom ndorondoro; Belgium ruru eru maka 2008 Olympic ndorondoro site na-abịa nke atọ na European Championship
na Manchester. Na 2007 European Championship, Dekeyser nyere Belgium ụzọ maka oge mbụ na egwuregwu ha megide Germany site na ịde 3-2 site na nkwụsịtụ nkwụsị. N'egwuregwu mbụ nke Belgium n'egwuregwu Olimpik n'oge okpomọkụ na Beijing, megide Spain, o si n'akụkụ penalty gbagote ọzọ. Belgium meriri egwuregwu ahụ 4-2. N'ikpeazụ, ndị Belgium bịara nke itoolu na Beijing. N'afọ 2011, Dekeyser tinyere ndị Belgium n'ọkwa nke anọ na European Championship na Germany, na 2012 Summer Olympics na London ha mechara nke ise. Ọ ghọrọ osote onye mmeri Europe na Belgium na 2013 European Championship na ụlọ ala na Boom.