Arsenal have landed their first major signing of the transfer window after completing a £30million plus add-ons deal for Porto midfielder Fabio Vieira.
The Portuguese club confirmed in a statement that the 22-year-old was leaving to join Arsenal.
Arsenal will pay an initial £30million for Vieira, with a further £4million in add-ons that Portuguese newspaper O Jogo reported would be easily achievable.
Vieira had cut short his holiday in Mykonos to have a medical and sign for the Gunners.
Arsenal are closing in on a £30million deal to sign Porto midfielder Fabio Vieira this summer
The deal could be the start of a promising window for Mikel Arteta's Arsenal, who are also pursuing Manchester City striker Gabriel Jesus and Leicester midfielder Youri Tielemans.