West Ham United are taking a close look at Shakhtar Donetsk attacker Mykhaylo Mudryk.
Mudryk, 21, has been linked with the Gunners since the summer after Nicolas Pepe's loan move to Nice.
But it's thought the Hammers had scouts watching him in Ukraine's 3-0 Nations League defeat against Scotland at Hampden Park on Wednesday.
Reports suggest the 21-year-old will cost up to £40million to sign.