According to 'O Jogo', Porto are keeping a close eye on Valentin Rongier to replace Oliver Torres, Sevilla's new signing.
Sergio Conceicao has asked for the 24 year-old midfielder to be signed to strengthen the Portuguese club's midfield for next season.
Valentin Rongier came through the Nantes academy and has 12 goals and 12 assists to his name in the 171 matches he has played for the club. It is the only team he has been at so far in his career.