Manchester United have confirmed the signing of full-back Alex Telles on a four-year deal with the option for a further year.
The 27-year-old underwent a medical at the clubâs training ground on Monday after breakthrough in negotiations with Porto on Sunday.
Telles was ready to fly to Brazil for international duty when the two sides came to an agreement on a fee.
United had been in talks with the Portuguese club over the full-back for a number of weeks but were apart on their valuation.
Unitedâs initial bid was around Â£12 million as the defender was in the final year of his contract but, there was an agreement reached on Sunday and it is understood United have paid â¬15m (Â£13.5m/$19m) with an additional â¬2m in add ons.
Tellesâ arrival is to bring competition to Luke Shaw at left-back and should also bring a different dimension to Unitedâs attack. The 27-year-old scored 13 goals and assisted 12 in 49 appearances across all competitions last season.
Upon joining the Red Devils, Telles said: “To join a club with the prestige of Manchester United is a huge honour.
“You have to work hard to get to this moment in your career and now I am coming to this club, I can promise that I will give everything in my heart to be a success here. I won many trophies at FC Porto and I want to continue that at United.
“The manager has a clear plan and direction for this team and I canât wait to pull on the famous shirt.â