New Arsenal signing Fabio Vieira has insisted he will work hard after his £30million plus add-ons deal, although he expects the Premier League to be tough.
Portuguese club, Porto, confirmed in a statement that the 22-year-old was leaving to join Arsenal.
Vieira, a highly-rated midfielder who recorded a league-high 14 assists in the Primeira Liga last season to help Porto win the title, cut short his holiday in Mykonos to seal the deal.
The 22-year-old former Porto midfielder knows the 'Premier League won't be easy'
Discussing his move to the Emirates, the midfielder told the Daily Mirror: 'I was always happy at Porto but this chance is important for any professional.