The central creative midfielder spent the second half of last season on loan with the Gunners.
Odegaard played a vital role in the team improving on their dismal form during the first half of the campaign.
"When I watched him play I could tell he had a lot of talent but he reminded me of a younger version of Mesut Ozil because he didn't get a grip of the game enough," Groves told talkSPORT.
"Ozil had so much talent and when he fancied it, he was one of the best players in the Premier League.
"He didn't do it on a regular basis and didn't dominate the way he should.
"If you're playing in the No.10 role you've got to do better from Odegaard's point of view than one goal and one assist. "You've got to contribute more in a side that usually dominates possession. Emile Smith Rowe can play in that position as well and he'll give you more on the ball and off it – so it didn't surprise me at all."
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