[2] Jensen was one of three Lyngby players sold to Dutch team PSV Eindhoven, alongside Anders Nielsen and Dennis Rommedahl.

[4] Jensen played only five games in one and a half seasons at PSV, as he underwent two groin operations, and was used as back-up to Dutch international Arthur Numan.

[6] Jensen played the remaining 18 games of the season, as Manchester City won promotion to the top-flight FA Premier League in the summer 2002.

Returning from the 2002 FIFA World Cup, he played 33 of Manchester City's 38 games in the 2002–03 Premiership season, as the club finished ninth in the Premier League.

A high point came at home against Leeds United when Jensen scored a spectacular volley to win the game.

[7] Niclas Jensen was bought by German team Borussia Dortmund in July 2003 for a fee in the region of £750,000.

[8] He started well for Dortmund, but Jensen was eventually relegated to the role of substitute for Brazilian wingback Dedê.

[10] After two years at Dortmund, he moved back to England in July 2005, to play for Fulham in the FA Premier League.

[14] While at B.93, Jensen made his debut for the Denmark under-17 national teams in July 1990, and he played three matches at the 1991 UEFA European Under-16 Football Championship.

[15] While playing for Lyngby, Jensen debuted for the Denmark under-21 national team in July 1994,[15] and he won the 1995 Danish Under-21 Player of the Year award.

Under new national team coach Morten Olsen, Jensen was recalled for a friendly match against Germany in November 2000.