's pre-season preparations have been dealt a blow after being beaten 3-2 by Borussia Dortmund
in their first match of the pre-season tour of the United States.
In stifling conditions at the Notre Dame Stadium in Indiana, the European champions faced the Bundesliga runners-up in what Jurgen Klopp
had called 'the first proper test' of his side's pre-season.
Missing regular starters Roberto Firmino, Alisson Becker, Mohamed Salah
and Sadio Mane due to the Copa America and Africa Cup of Nations, Liverpool were hurt by a sloppy defence and Dortmund wasted no time in finding the net courtesy of a close-range strike from Paco Alcacer after just three minutes.
Harry Wilson found the net in the 35th minute to draw level but Dortmund scored two quick goals after the break.
Thomas Delaney made it 2-1 eight minutes into the second half with an easy tap-in and Jacob Bruun Larsen extended the lead after finding the bottom corner in the 58th minute.
Rhian Brewster converted a penalty in the 75th minute after Ben Woodburn was brought down in the box.
However, the Reds could not find the equaliser in the closing stages in front of the 40,361-strong crowd.
Klopp had featured many of the younger players in his starting line-up but handed Trent Alexander-Arnold, Jordan Henderson, Andy Robertson, Virgil van Dijk and Georginio Wijnaldum their first summer match action after making 10 changes on the hour mark.
Liverpool will continue their pre-season tour at Boston's Fenway Park against Sevilla on Sunday.