Leeds have completed the signing of defender Junior Firpo from Barcelona for an undisclosed fee.
The 24-year-old left-back, who made 41 appearances in all competitions for Barcelona, has agreed a four-year deal with the Premier League club.
Leeds have been reported to have paid £12.8m for the Dominican Republic-born former Spain Under-21 international.
"The Whites have beaten off competition from a number of clubs to secure the services of the 24-year-old, who joins from Spanish outfit FC Barcelona for an undisclosed fee," Leeds said.
"Following a period of quarantine and completion of his medical, the full-back signed a four-year deal at Elland Road, running until the summer of 2025."
Firpo is Leeds' third summer signing after turning Jack Harrison’s loan spell from Manchester City into a permanent deal and signing teenage winger Amari Miller from Birmingham last week.
Firpo, who moved to Malaga as a child, began his professional career at Real Betis and made 29 appearances in all competitions for the club before signing a five-year deal with Barcelona in August 2019.
He made 18 appearances in all competitions for Barca last season and scored two goals for the Catalan club.
Firpo arrived in the city last week and completed his medical on Monday night after spending five days in quarantine.
Leeds, who had been in the hunt for a specialist left-back, bade farewell on Monday to defender Ezgjan Alioski.
North Macedonia international Alioski ended his four-year spell at Elland Road after turning down a new contract offer.

Arsenal midfielder Matteo Guendouzi has joined Marseille on a season-long loan, the French club have announced.
The Ligue 1 outfit have also secured an option to buy the 22-year-old Frenchman, who spent last season on loan with German side Hertha Berlin.
Guendouzi joined Arsenal from Lorient in 2018 and made 82 appearances over the course of two seasons before moving to Germany.
He played 24 times and scored twice for Hertha last term.

Brighton have announced the signing of midfielder Enock Mwepu from RB Salzburg for an undisclosed fee.
The 23-year-old Zambia international arrives on a four-year deal as Albion's first new recruit of the summer.
Mwepu had been with Salzburg since 2017 and made 81 league appearances for the Austrian outfit, scoring 11 goals and laying on nine assists.
Brighton boss Graham Potter told the Seagulls’ official website: "We’re delighted to be able to welcome Enock to the club and are looking forward to working with him.
"He has a great deal of experience for somebody of his age, including Champions League and international football.
"He’s primarily a central midfielder, although he is capable of playing in numerous positions, is open-minded, adaptable and very keen to learn and develop.
"He will add competition to our existing options in that area of the squad going into the new season."