 In the subsequent off-season he signed with Spanish side Sevilla FC for five years, but spent the vast majority of his first seasons barred by Jesús Navas, a club youth product; however, on 16 November 2008, having only played five minutes at Getafe CF, he scored in a 2–0 La Liga away win.On 15 January 2009, De Mul agreed to be loaned to K.R.C.Genk, thus returning to his country.