Speaking on the Transfers Podcast, journalist Duncan Castles said: "I understand that Sesko is asking for an exit clause on any deal he agrees with Arsenal and he would like that release clause to be set at just 20% increase on whatever price they end up paying for him."
He added: "It's quite unusual to ask for something like that when you're moving from, let's say a second-tier European club to one that is perceived as a first-tier club and one of the most financially affluent clubs in European football and I think it's unlikely that Arsenal would agree to a deal on those terms."