Ahead of their Europa League clash at Molde, Arteta was asked about the Norwegian summer signing.
He said, "He's a player with huge potential. Norway are developing a lot of talent in recent years and it's the fact that you're doing a lot of things right from the academy, probably the government, with developing the programmes over the years.
"Now you can see some results and I'm pleased to see that because that means that these leagues are getting more and more competitive, and things are getting done better around Europe as well."
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