The 19-year-old was part of the 23-man Belgium squad that reached the quarter-finals of the World Cup in Brazil.
The teenager was impressive for the Red Devils in the tournament, as he scored one goal in five appearances for his country.
Origi, who had 82 per cent of his shots on target in the tournament, scored five goals in 12 Ligue 1 starts for Lille last season.
Liverpool are in advanced talks with Lille over a £10million deal for Origi, who has now stated that he has yet to decide which club he will join next season.
"I myself am still thinking about it,” the Liverpool Echo quotes him as saying. "It is true that there are offers from all over Europe.
“Now I have to look carefully where I will grow as a player and as a person. I think it will be clearer, within two weeks at the most."