Sunderland have agreed a fee with Liverpool for the sale of midfielder Jordan Henderson, the north-east club have confirmed on their official website.
The England international, 20, will head to Anfield on Wednesday to have a medical and discuss personal terms.
A statement from Sunderland said: "A fee has been agreed with Liverpool for Jordan Henderson and he travels to Anfield with the club's blessing."
It is understood the deal is worth in the region of £20million, while it is thought French striker David Ngog could travel in the opposite direction,
Henderson's likely arrival would make him manager Kenny Dalglish's third high-profile signing after the big-money January captures of Andy Carroll and Luis Suarez.
Sunderland have repeatedly stated that the player was not for sale, but Liverpool's cash has persuaded them to part company with Henderson, who will head to Denmark later this week to link up with the England Under-21 squad for the European Championships.
Henderson, who previously had a loan spell with Coventry, made his Sunderland debut in a 5-0 defeat to Chelsea in November 2008 and has gone on to make 79 appearances for the club, scoring five goals.
He made his England debut against France in November last year.