Tottenham Hotspur have agreed to loan Georges-Kevin N'Koudou to Mainz for the season, according to Sky Sports.
A permanent option at the end of the loan deal is being discussed between the two clubs.
N'Koudou has struggled to make an impact with Spurs since joining from Marseille in 2016. He spent the second half of last season on loan at Burnley.
The 23-year-old has made a total of 23 appearances for the north London club.