Liverpool are in advanced talks to sign Andy Lonergan on a short-term deal amid fears Alisson will be sidelined for two months through injury.

The Brazilian goalkeeper pulled up with a calf injury in Friday’s 4-1 win over Norwich City and initial assessments yesterday showed he could be out for between four and six weeks.

A Liverpool source has told Football Insider the club have immediately turned their attention to wrapping up the signing of Lonergan, 35, after he impressed on the club’s pre-season tour of the United States.

Discussions over a deal are at an advanced stage after Liverpool tabled a contract offer to the 6ft 4in keeper that is expected to be accepted.

The news stated that Liverpool were plotting a move to sign Lonergan in the wake of Alisson’s injury.

The Merseyside giants want proven back-up to Adrian, who was signed at the start of the week as a replacement for Simon Mignolet following his transfer to Brugge.

Lonergan is in Liverpool’s thinking as number three Caoimhin Kelleher is still recovering from a wrist injury that has sidelined him since early July.

Lonergan is available as a free agent after leaving Middlesbrough at the end of last season and Premier League rules allow clubs to sign players of that status outside of the transfer windows.

The 35-year-old has made 405 senior appearances in a career that has included spells at Leeds United, Wolves, Bolton Wanderers, Preston North End and, most recently, Boro.