Tottenham have signed teenage Metz midfielder Pape Matar Sarr and allowed Moussa Sissoko to join Watford.
Senegal international Sarr will remain on loan with Ligue 1 side Metz for the rest of the season before linking up with Spurs.
The 18-year-old joined Metz from the Generation Foot Academy in Senegal last September and made 25 appearances for the club in the 2020-21 campaign.
Sissoko will remain in the Premier League with newly promoted Watford on a two-year deal.
The Hornets are reported to have paid around £3million for the 32-year-old midfielder.
Sissoko, capped 71 times by France, made 202 appearances for Tottenham following his £30m move from Newcastle United in 2016.