Urby Vitorrio Diego Emanuelson (born 16 June 1986) is a Dutch professional footballer of Surinamese descent who plays for Eredivisie side FC Utrecht and the Netherlands national team. As a product of the Ajax Youth Academy, he spent most of his career at Ajax playing as a left wing-back, before being played more as a left midfielder or left winger by manager Martin Jol. After his move to Milan, his then-manager Massimiliano Allegri played Emanuelson also as an attacking midfielder, midfielder and right winger.
Emanuelson is a product of Ajax's youth system, joining them from Voorland SC. He made his debut during the 2004–05 season on 10 April 2005 in a 4–2 home win over AZ. As of the 2005–06 season, he became first-choice left back and he won his first career trophies, starting with the 2005 Johan Cruyff Shield and the 2005–06 KNVB Cup. As a result, his efforts he was named "Amsterdam talent of the year 2006". Both the Johan Cruyff Shield and KNVB Cup were successfully defended in the 2006–07 season, with the former won for the third consecutive year at the start of the 2007–08 season.