Derk Boerrigter is a retired Dutch footballer, who played most of his career as a winger. He began his professional career with Ajax, but did not make any first team appearances and was eventually loaned to Haarlem. He then played for FC Zwolle and RKC Waalwijk before rejoining Ajax. In 2013, he moved abroad to sign for Celtic, playing there until retiring following the 2015–16 season. Wikipedia