Newcastle United have extended the contract of Federico Fernandez until the end of the 2020/21 season.
The 31-year-old defender has been at St. James' Park since 2018.
Manager Steve Bruce said: "It's really good news to get Fede tied up. He has had a great season and richly deserves this recognition.
"He is a great professional. He trains and works incredibly hard for the team and he continues to be a positive influence around the place. We're delighted to have him."