Riise joined the Cottagers in July for £2million, but is yet to start a game for the club.
He said of his new team-mates: “I don’t think they’ve done all that good. But they have a good reputation and come from bigger clubs than me.
“I came from little Lillestrom in Norway, but players like Damien Duff have a name and status after playing for clubs like Newcastle and Chelsea and is ahead of me.
“I believe I have better qualities and strengths as a player than he does. He has the speed and the experience, and a good shot.
“But he is not that much faster than I am, and I have a better technique, a better touch and deliver better passes than he does. And I can be used in different roles.”