With Alisson Becker yet to report back for pre-season training following his involvement in Brazil’s Copa America triumph, and young stoppers Caoimhin Kelleher and Vitezslav Jaros both injured, the Reds will include the 35-year-old in their travelling party for the three-match trip to North America this week.
Lonergan - currently a free agent - will work with coaches John Achterberg and Jack Robinson, as well as goalkeepers Simon Mignolet and Daniel Atherton, in the team’s preparations in the USA, as well as the pre-season training camp in Evian later this month.
He has represented several clubs during his career, including Preston North End, Fulham, Wolverhampton Wanderers, Leeds United, Bolton Wanderers and, most recently, Middlesbrough.