It was a clever one two with Duff that created his goal on Tuesday, after a genius back-heeled return from the Irishman.
I'm sure we can play in the same team and I've always said that," said Robben.
"It's great for our confidence and I'm pleased with my form. I feel very strong and am only going to get better.
"I didn't have expectations when I came here. I just wanted to show my qualities.
"I'm always attacking, trying to pass people and create chances."
His view is shared by super Frankie Lampard, who feels Robben has added an extra dimension to our play.
"Arjen is fantastic and he's given us a real spark. It's great to play with players like that and great for the fans to see," said Lamps.
"He and Duff together are a very exciting prospect. Arjen is very clever and gets the ball out from his feet quickly, runs at people and can put people in trouble similar to the way Duff plays.
"With those two we have the kind of spark which maybe we've been missing a bit."
Lets hope he scores another cracker on Saturday against Everton!