Chelsea look set to hijack Arsenal's pursuit of Mykhailo Mudryk after agreeing a €100 million deal with Shakhtar Donetsk for the winger, sources have told ESPN.

The bid comprises a fixed fee of €70m with a further €30m in add-ons, matching the Ukrainian club's valuation for the transfer of the 22-year-old.

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ESPN reported on Friday that Arsenal had made a third offer for Mudryk but that Chelsea were still expected to table a bid of their own despite signing Joao Felix on loan from Atletico Madrid until the end of the season.

Sources have told ESPN that Chelsea offered Mudryk a better wage package and a longer contract than what Arsenal tabled. Sources also said the €30m in bonuses are easily achievable.

In a statement Saturday, Chelsea confirmed they were "discussing terms with Shakhtar Donetsk for the transfer of Mykhailo Mudryk."

"Should a deal be agreed between the two clubs then the Ukrainian international, who can operate as a winger or a forward, will discuss personal terms with the Blues ahead of a permanent transfer," the statement concluded.

Arsenal have made most of the running in attempting to sign Mudryk, who had hinted in several social media posts that he was open to moving to Emirates Stadium.

However, a source with close knowledge of the deal told ESPN that Arsenal were still attempting to negotiate the structure of payments and the various performance-related achievements that would constitute the add-ons.

In the meantime, Chelsea have moved quickly. A club delegation involving Behdad Eghbali, representing co-owners Clearlake Capital, and director of global talent and transfers Paul Winstanley flew to Turkey for face-to-face talks with Shakhtar representatives.

Conversations progressed rapidly and Chelsea are now confident of agreeing personal terms with the player.

Sources have told ESPN that Arsenal always felt the player preferred to join them but Chelsea are at an advanced stage in negotiations with Mudryk's representatives over a long-term contract.

On Saturday, Shakhtar released a short statement confirming a deal was close.

The statement read: "FC Shakhtar president Rinat Akhmetov and Chelsea co-owner Behdad Eghbali discussed Mykhailo Mudryk's transfer to Chelsea FC today. Parties are very close to agree on player's transfer to the club."

Information from ESPN's Julien Laurens contributed to this report.