By North-west correspondent Alex Stevens

Liverpool have reached a pre-contract agreement with Joel Matip ahead of a summer move to Anfield, Football Insider sources understand.

The Schalke defender will move to Liverpool at the end of the season after rejecting a series of contract offers from the Bundesliga club.

A Liverpool source has told Football Insider that Matip has agreed the terms of a four-year contract worth £60,000-a-week. The deal is worth £12.5million plus bonuses.

As revealed by Football Insider, the Merseysiders made a contract offer in January to the centre-back, whose contract with Schalke expires in the summer.

Liverpool have now reached a formal agreement for the player, who will move to England when his contract expires in June.

Schalke have called a press conference for 12.30pm on Monday, at which they are expected to announced the departure of Matip.

Manager Jurgen Klopp sanctioned a move for the Cameroon international, who has come through the ranks at Schalke and is well known to the German from his time in the Bundesliga.

Asked about Liverpool’s pursuit of Matip during the January window, Klopp did not distance the club from a pursuit of the 24-year-old.

He said: “There is nothing to say about it. If and when something is fixed you will be the first to know.”

Klopp has already signed Steven Caulker on loan from QPR until the end of the season after his hand was forced by injuries to Liverpool’s four senior defenders.

Deal maker: Klopp refused to distance Liverpool from Matip move

Deal maker: Klopp refused to distance Liverpool from Matip move

It is not known if Liverpool will make a permanent move for Caulker but the club is working on options to strengthen their backline.

Schalke wanted Matip, who has 27 caps for his country, to pen a new deal but he has chosen to move to Anfield instead.

Matip has remained a regular for the German club this season, making 26 appearances in all competitions, including 21 in the Bundesliga.