The Gunners are thought to be in the running to sign the Belgium international in a free transfer this summer.
Fellaini’s current deal at the Manchester outfit is set to expire and the 30-year-old will become a free agent.
Arsenal appointed Spanish head coach Unai Emery as Arsene Wenger’s successor last month.
The former Paris Saint-Germain manager looks to be adding experience to his Gunners squad.
The north London side signed Switzerland captain Stephan Lichtsteiner in a free transfer from Juventus.
However, former Arsenal star Mariner isn’t convinced Fellaini is the type of signing that the Gunners need.
“I don’t get excited about it,” Mariner told ESPN FC.
“Would he fit in at Arsenal? I am not too sure. He is on a free transfer. He is 30.”
Fellaini has won the FA Cup, the Europa League and the League Cup during four seasons at Old Trafford.
Manchester United haven’t won the Premier League title since 2013 and Fellaini has been a scapegoat for the regression.
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