Gazidis is now at AC Milan and reports in Italy say he is readying a £17million summer bid for the struggling defender.
Mustafi has become a scapegoat for Arsenal’s struggles this season and the majority of supporters are keen to see him leave the club just three years after moving from Valencia in a £35million deal.
The Germany international, 27, has been guilty of a number of poor performances this season but that does not appear to have put off AC Milan as they are desperate to sign a new centre-back in the summer.
However, some Arsenal fans believe Gazidis might actually be working to do his old club a favour and they went into meltdown as they took to Twitter to praise him.
One said: “Finally Gazidis is doing something good for the club!!!”
Another added: “AC Milan are interested in Mustafi?
“Ivan Gazidis really left the club & fled to Italy so that we’d be able to offload the German. Once a Gunner, always a Gunner.”
A third agreed: “Forget €20million. I will drive Mustafi to Milan just to ensure he never puts our shirt on again….”
Another said: “If AC Milan buy Mustafi, we should send them a nice hamper from Fortnum and Mason as a thank you.”
Another was quick to thank Gazidis: “According to the football rumours ex-Arsenal chief, Ivan Gazidis, wants to bring the world’s worst defender Mustafi to AC Milan.
“If this rumour turns out to be true then I think every Arsenal fan will be much grateful to Ivan.”
Despite the latest reports on Mustafi’s future, Gunners boss Unai Emery has previously hinted he has a future at the club.
Speaking after he was roundly criticised for making two mistakes in a 3-2 defeat by Crystal Palace last month, Emery said: “I want to protect the players.
“Mustafi is a very good player, a very good centre-back, he has the habit – usually he is doing the tackle and going to ground, using anticipation against the opposition.
“He can win one, win two, win three, win four – but if he loses one he is the picture and if he concedes a goal he is the big picture. For example, Sunday [against Palace] was the same and happened with him.”