Rat captains his native side and has been a vital player for Shakhtar Donetsk over the past ten years, leading them to domestic glory and numerous European campaigns.
The 31-year-old is out of contract at the end of the season and is set to sign a three-year Premier League deal in East London that is set to be announced in the coming weeks.
West Ham have coped well in their first season back in the top flight and sit nicely in the top half of the table going into to a vital summer of recruitment.
The full back positions have been an issue for the Hammers though as first choice left back George McCartney has missed the majority of the season through injury, with Joey O’Brien filling in admirably.
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