Passage: Born in Aryanah, Tunisia, Trabelsi grew up in Sfax, and started his football career with his home town club Sfaxien, where he initially played as a forward. An injury crisis at Sfaxien resulted in Trabelsi playing as a stop-gap right-back, leading to him converting to defence and becoming the team's regular right-back. In 2001 Trabelsi moved to Europe, signing for Dutch club Ajax.

Question: who moved to europe in 2001?
Trabelsi