Thomas Meunier (Right-back, Paris St. Germain)

The Belgian international joined Paris St. Germain from Club Brugges for €7 million in the summer of 2016-17.
The 28-year-old has scored 13 goals in 109 appearances in all competitions for the French club. Thomas Meunier's contract with PSG runs out at the end of the season.
Layvin Kurzawa (Left-back, Paris St. Germain)

Another PSG full-back could join another club for free at the end of the season.
Layvin Kurzawa joined the French capital club from Monaco for €25 million in the summer of 2015-16. The 27-year-old French left-back has scored 12 goals and provided 19 assists in 108 games for PSG in all competitions.
Midfielders
Fernandinho (Defensive Midfielder, Manchester City)

Fernandinho arrived at Manchester City from Ukrainian side Shakhtar Donetsk in the summer of 2013-14 for €40 million.
The 34-year-old Brazilian has scored 23 goals and provided 25 assists in 285 games in all competitions for Manchester City but hasn't scored in 8 Premier League and 4 Champions League games this season.
Fernandino has won 3 Premier League titles (2013-14, 2017-18, 2018-19), 4 EFL Cup titles (2013-14, 2015-16, 2017-18, 2018-19) and the 2018 Community Shield with Manchester City.
Christian Eriksen (Attacking midfielder, Tottenham Hostpur)

Christian Eriksen joined Premier League side Tottenham Hotspur from Ajax for €13.5 million in the summer of 2013-14.
An integral part of the Spurs midfield over the years, Eriksen has scored 68 goals and provided 81 assists in 291 games in all competitions for the London club. The 2018-19 Champions League finalist could leave Spurs for free in the summer of 2020.