Arsenal lost Alexis Sanchez to Manchester United in January but signed Henrikh Mkhitaryan in his place.
The Gunners could end up losing another star player this summer according to club legend Martin Keown.
Keown told Goal that he feels Arsenal were held to ransom by Sanchez and Mesut Ozil.
The former defender thinks Ozil will leave, although he hopes he is wrong.
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“In the summer, Arsenal could have got £60 million for Sanchez. The arrival of Henrikh Mkhitaryan now has at least allowed them to get something from the deal,” Keown said.
“While I hope we are proved wrong, I think Ozil will leave this summer. It feels like Arsenal have been dictated to by these players for too long. In the future, this situation cannot be allowed to happen again at Arsenal.
“I feel sorry for the other players in the dressing room who have had to deal with this going on around them.”
The playmaker of Turkish origin is expected to stay at Arsenal until at least the end of the season.
The problem Arsenal are facing is that Ozil only has a few months remaining on his contract.
Unless an extension deal is signed the 29-year-old will be a free agent at the end of the season.
The ongoing contract saga has not distracted Ozil from his duties on the field.
The 2014 World Cup winner has picked up Arsenal player of the month awards for November and December.
Ozil put in an impressive display in the 4-1 win against Crystal Palace last weekend and excelled in the League Cup semi-final clash against Chelsea.