The Dortmund game means that Liverpool will play six preseason games, starting with Preston on July 19, and ending three weeks later against Dortmund.
After the Preston match, Liverpool will head back to America for at least four games. Liverpool last visited the United States in 2012, where they lost 2-1 at AS Roma at Fenway Park and the two Boston owned sides meet again this time on July 23 at Fenway.
From there, the Reds are already scheduled to play a series of games in the US as part of the Guinness International Champions Cup.
They will kick off in that tournament by taking on Olympiacos at Chicago‘s Soldier Field on July 27. That will be followed with a match against Manchester City on July 30 at Yankee Stadium in New York, and a meeting with AC Milan at Bank of America Stadium in Charlotte, N.C., on Aug. 2.
Liverpool 2014 Pre-Season Fixtures
Saturday 19 July: Preston vs Liverpool – Kick-off 3pm BST at Deepdale
Wednesday 23 July: Liverpool v AS Roma – Kick-off 5pm CST at Fenway Park, Boston
Sunday 27 July: Liverpool v Olympiacos – Kick-off 5pm CST at Soldier Field Stadium, Chicago
Wednesday 30 July: Manchester City v Liverpool – Kick-off 7pm EST at Yankee Stadium, New York
Saturday 2 August: Liverpool v AC Milan – Kick-off 6:30pm EST at Bank of America Stadium, Charlotte
Sunday 10 August: Liverpool v Borussia Dortmund – Kick-off 12.15pm BST at Anfield