Rio Ave's Pele is the latest player to sign for Monaco as they prepare for the 2018-19 Ligue 1 season.
Jonathan Panzo, who won the National Under-18s Premier League with Chelsea last season, has agreed a permanent transfer to Monaco.
Attacking midfielder Robert Navarro, 16, has completed a move from Catalan giants Barcelona to Ligue 1 side Monaco.
Lyon had been determined to hold on to highly rated Willem Geubbels, but Monaco have signed the teenager.
Atletico Madrid announced on Monday that Monaco and France winger Thomas Lemar has agreed terms over his impending move to the club.
Atletico Madrid have come to an agreement with Monaco for the transfer of France international winger Thomas Lemar.
Samuel Grandsir impressed despite Troyes' Ligue 1 relegation and has secured a move to Monaco in a deal that is reportedly worth €3million.
Terence Kongolo – who arrived at Huddersfield Town on loan in January – has signed a four-year deal for a fee reportedly worth £17.5million.