He fell out of favour at Ajax in 2003–04, and spent the second half of the season on loan at English club Portsmouth in the Premier League.

Portsmouth manager Harry Redknapp was interested in purchasing Pasanen at the end of the season, but claimed Ajax's asking price was too high.

On 30 June 2011, after the end of his contract, he left Werder Bremen,[3] and signed for Red Bull Salzburg.

He scored his only goal on 22 May 2002 in a home friendly at the Helsinki Olympic Stadium against Latvia, which Finland won 2–1.

Since 2020, Pasanen has worked for MTV and C More Finland as a football studio host in UEFA Champions League matches and international tournaments.

[9][10][11] In May 2023, Pasanen worked as a studio host in 2023 IIHF Ice Hockey World Championship tournament.