The 28-year-old Manchester United defender has been laid low with his latest muscle issue since mid-February.
Mbappe could be unveiled by the Spanish giants in the coming days before Euro 2024.
Harry Maguire and Luke Shaw are hoping to make Southgate’s Euro 2024 squad.
Real Madrid, tactically and culturally and commercially, was really the only club capable of accommodating Mbappé’s talent and celebrity.