 At RKC, he would play 12 matches in which he scored three times, but he was unable to help the team avoid relegation to the Eerste Divisie.Vertonghen returned to Ajax for the 2007–08 season, where he was tipped for stardom, but was unable to break through due to a severe injury and the presence of central defenders John Heitinga and Thomas Vermaelen.Johan Cruyff had made no secret of his admiration for the left-footed youngster who can handle any left-sided position in defence and midfield, opting, on 26 September 2008, to extend his contract to 30 June 2013.