Chris Wilder has vowed he will "always look after Sheffield United" after he was accused of being "selfish" by Jurgen Klopp.
The Blades boss sparked a war of words with Klopp last week as he labelled the Liverpool manager "selfish" for calling for the return of the five substitutes.
Wilder followed up his remarks by flagging what he sees as more self-interest by "world-class politician" Klopp over the return of fans to certain stadiums.
Klopp returned fire by highlighting Sheffield United's meagre tally of just one point in the Premier League even though the five substitutions rule was voted down last summer.
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