He is the younger brother of former Liverpool and Fulham player John Arne Riise, also a Norwegian international.

[6] In January 2003, Riise signed a three-year deal with Standard Liège, after impressing on a trial that included two reserve team appearances.

[9] In July 2009, Norwegian media reported that Riise was to join international teammates Brede Hangeland and Erik Nevland at Fulham, for a fee believed to be around £2 million.

[13] He made his Fulham début in a Europa League tie against FK Vetra coming on as a 78th-minute substitute for Zoltan Gera.

[14] Whilst at Bramall Lane he scored his first goal in English football, in a 2–0 win over Leeds United.

[15] With the Blades struggling he could not help to prevent them from being relegated at the end of the season and returned to Craven Cottage having played thirteen times for the Yorkshire club.

[16] On 28 July 2012, Riise was presented as a new Lillestrøm player during half time in their home game with Molde.