O meia Nathan acertou em definitivo com o Atlético. #Galo 🏴🏳️
— Atlético 😷 (@Atletico) July 1, 2020
The 24-year-old has joined the Galo on a permanent deal, signing a contract that will run until June 30, 2024.
The Brazilian club did not disclose a fee, but according to UOL Esporte they have paid €3m for Nathan.
Atletico had an option to buy Nathan for €6.5m, which means they successfully negotiated a discount with Chelsea.
Nathan joined Chelsea from Atletico Paranaense in 2015, but never appeared for their first team.
The London club loaned Nathan, a former Brazil under-20 international, to Vitesse, Amiens, Belenenses and finally Atletico Mineiro.