Boudewijn Zenden fears that Liverpool will struggle to contain Barcelona sensation Lionel Messi, insisting it "makes no sense" trying to come up with a plan to stop him.
The Reds and Barca will meet in a highly-anticipated Champions League semi-final, with the first leg taking place at Camp Nou on Wednesday.
Jurgen Klopp's side will naturally be focused on Barca's talisman, who is in the midst of another standout campaign.
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Messi has 46 goals in all competitions in 2018-19, with Barca having already clinched the Liga crown as well as having a Copa del Rey final to look forward to.