The 25-year-old has put pen to paper on a long-term deal after passing his medical on Wednesday night.
Baptiste #Santamaria wechselt zum Sport-Club! Der 25-Jährige kommt vom französischen Erstligisten SCO Angers.
— SC Freiburg (@scfreiburg) September 17, 2020
His future will not be in England, but rather in the south-west of Germany with Freiburg.
Santamaria will wear the number 8 shirt at his new club.
Krunic could follow
However, the Italians will wait until after their Europa League tie with Shamrock Rovers before deciding whether to accept the bid.