Parlour was impressed by the Swede's two-goal performance for Arsenal's 4-1 win at Tottenham on Sunday.
Speaking to The Sun with BetMGM, Parlour said: “If he can do what he did against Tottenham week in, week out then that would be fantastic.
“He looked like a different player against Tottenham. He looks a lot more confident.
“Not just his goals he scored, but the all-round play was much better. He was getting into the right positions. The last goal was like prime Thierry Henry back in the day.
“Henry used to do that on a regular basis. So, if he can carry on that form, that would be the missing link, because that’s probably where Arsenal are weakest.
“If you look at the team in general, it’s the strike force.”
