Crystal Palace have completed the signing of Jairo Riedewald from Ajax.
The 20-year-old defender will be reunited with Eagles boss Frank de Boer who gave him his first-team debut at Ajax in 2013.
Defender Riedewald has won three caps for Holland and played against Manchester United in Ajax's Europa League final defeat last season.
Riedewald told the club's official website: 'I am very pleased to be joining Crystal Palace and, after speaking with the gaffer a couple of weeks ago, I was delighted to have the opportunity to come over and play in the Premier League.