Bournemouth have agreed to sign Marcus Tavernier from Middlesbrough for £12million plus a further £3m in bonuses.
Middlesbrough manager Chris Wilder confirmed a bid had been received and Tavernier is in Bournemouth ahead of finalising terms this weekend.
The 23-year old winger is expected to be in the stands for Saturday's friendly with Real Sociedad ahead of beginning full training with his new teammates.
He is due to sign a five-year deal, becoming Bournemouth's third signing of the summer after Joe Rothwell and Ryan Fredericks joined on free transfers.
Tavernier, the younger brother of Rangers captain James, has been tipped to make a big impact by England manager Gareth Southgate, who has followed his progress at Boro and with England U20s.