Chelsea should take caution from Liverpool's shock defeat to Red Star Belgrade when the Londoners take on BATE Borisov on Thursday, according to Mateo Kovacic.
The Blues currently boast a perfect record in their Europa League campaign, having won all three of their encounters in Group L.
BATE, meanwhile, lie rock bottom of their group, with just one point from a possible nine.
Liverpool, however, went into their Champions League clash on Tuesday with similar confidence, but were outplayed in a 2-0 defeat at the hands of Red Star.
And Kovacic warned that the same could happen in Belarus should Chelsea take the fixture lightly.