Newcastle sign De Jong from Ajax
© AFP

Newcastle United have completed the signing of forward Siem de Jong from Eredivisie champions Ajax.

The 25-year-old Netherlands international moves to Tyneside for an undisclosed fee and has signed a six-year deal at St James' Park. De Jong came through the Amsterdammers youth system and has won four Dutch titles since making his debut in 2007, taking the captaincy in 2012.