Red-hot Slavia Prague have sent an ominous warning to Rangers ahead of next week's Europa League last 16 first leg.
Jindřich Trpišovský's side are undefeated domestically and secured a baseball score against overmatched Karlovy Vary on Wednesday night.
Slavia are flowing with confidence ahead of the showdown with Steven Gerrard's side on home turf on Thursday.
Ibrahim Traore scored and Matej Brebec netted an own goal Denis Visinksy and Ondrej Lingr both helped themselves to a brace.
But the hero of the night was Stanislav Tecl who scored four times as his side made it looks easy against their foes.
Rangers will certainly offer more resistance with Trpišovský acutely aware of the dangers posed by the team who remain unbeaten in the Europa League this season.
And Gerrard and his men could arrive in Prague next week with a spring in their step if results go their way and they secure their first Premiership title in a decade.
They edged a step closer on Wednesday when Alfredo Morelos scored a late winner to see off dogged Livingston.
If they defeat St Mirren on Saturday and Celtic fail to win against Dundee United then Rangers will be champions.
