Atletico Madrid sign Gelson Martins Sporting Lisbon winger on a free transfer.
The 23-year-old Portugal international, who played 125 times for Sporting, has signed a six-year contract at the La Liga club.
He has made 19 appearances for Portugal, and was part of its World Cup team in Russia.and Euro 2016 winner .
Martins was one of a number of players who told Sporting they were cancelling their contracts earlier this summer.
Martins was an alternative target for Arsenal this summer and was an alternative option for Liverpool last summer before they signed Mohamed Salah.