Thomas Vermaelen (Dutch pronunciation: ; born 14 November 1985) is a Belgian professional footballer who plays as a centre-back for Italian club Roma on loan from Barcelona. He also plays for the Belgium national team. Being left-footed, he usually plays as a left-sided centre-back and can play at left-back as well. His key attributes include aerial ability, leadership skills, and his quickness with the ball at his feet. He is also known for his goalscoring ability as a defender.