Porto have confirmed the deal to sell midfielder Fabio Vieira to Arsenal for £34million.
The 22-year-old Portuguese is Arsenal’s third summer arrival, after goalkeeper Matt Turner and Brazilian forward Marquinhos.
Vieira won the player of the tournament award at last year’s European Under-21 Championship.
“The club informs the market that it has reached an agreement with Arsenal FC for the signing, on a permanent basis, of Fabio Vieira for the amount of 40million Euros,” read a Porto statement.
Arsenal are yet to announce the signing but Vieira was understood to have been in north London on Thursday for a medical.
Mikel Arteta is expected to continue to push for further summer recruits at Arsenal, with Manchester City’s Gabriel Jesus heavily linked to an Emirates Stadium switch and Leicester’s Youri Tielemans another target.