Arsenal are in contact with Real Sociedad about re-signing striker Carlos Vela.
Real are prepared to sell the Mexico international this summer after a superb season and hope to raise €12 million from the transfer.
However, Arsenal have a buy-back option in Vela's contract worth a cut-price €4.5 million.
Vela is in talks with Real about a new deal, but president Jokin Aperribay knows he will be powerless should Arsenal trigger their option.
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