Chelsea completed their signing of Mykhailo Mudryk over the weekend for an initial €70 million plus €30 million in add-ons.
Arsenal had led the way in negotiations with Mudryk seeming to suggest they were his top choice. But from the outset that the Gunners were unwilling to meet Shakhtar's €100m valuation in the structure they initially demanded.
Shakhtar swiftly rejected Arsenal's opening bid but the Gunners were confident they could negotiate a lower fee than the initial €100 million asking price.
Mudryk was singularly focused on a move to the Emirates, and told his agents and Shakhtar as such.
Arsenal's third offer came a day after Chelsea's 2-1 defeat to Fulham, a result which one source said sharpened the desire to sign Mudryk at Stamford Bridge.
Arsenal could have tried to match Chelsea's overall package at the 11th hour but decided against doing so.