Thomas Vermaelen. (Dutch pronunciation: [ˈtoː.mɑs ˌvərˈmaːlə(n)]; born 14 November 1985) is a Belgian former professional footballer. Being left-footed, he usually played as a left-sided centre-back and could play at left-back as well. His key attributes included aerial ability, leadership skills, and his quickness with the ball at his feet.