Martin Dahlin is the representative of the 24-year-old left-back and he is adamant that Olsson, who has five or six clubs monitoring his situation, ready to step in.
There is no way that Olsson will be playing in the Championship as that could affect his chances of playing for Sweden.
Dahlin told the Lancashire Telegraph: "He has to keep on developing because he wants to keep his place in the Swedish national team. That means everything for him.
"I know the manager at Blackburn has said that he would like to keep all the players but playing in the Championship is not an option.
"He needs to play at the highest level to keep his place with the national team.
"Martin's ambition is to play in the top league somewhere and of course one ambition is to stay in the Premier League.
"There is already quite big interest in him. Five or six clubs are interested.
"There is interest from England and from other countries."