Luca Kilian's 86th-minute own goal from Owen Beck's cross was the crucial moment in Friday's warm-up fixture in Grodig, Austria.
Jürgen Klopp used the full-length match to give minutes to more than 20 of his squad as they prepare for the 2021-22 campaign.
Subscribers can see the best of the action against Bundesliga side Mainz in the highlights package above.
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