A Newcastle United fan group have said "every seat filled" at St James' Park is "an endorsement" of the club's owner Mike Ashley.
Last week, Rafa Benitez confirmed he would not be extending his contract with the Toon Army and leave the club after three-years by a mutual agreement.
The Spaniard had been popular on Tyneside and kept the club in the Premier League for two consecutive seasons - after guiding them to the Championship title in 2017.
His departure has led to some anger among fans who have been critical of owner Mike Ashley since he bought the club in 2007.
In a statement on AshleyOut.com, the fan group said:
"It was confirmed on Monday that Rafael Benitez and his backroom staff are to leave the club on 30th June 2019.
"No true Newcastle fan needs to be told what Rafa brought to this club and what he would’ve brought to the club in the future, if given the chance.
"No true Newcastle fan needs to be reminded who is to blame for the mess we are in.
"We have now suffered 12 years of Mike Ashley. Enough is enough.
"If fans want change and a future for the club then action must be taken. No more excuses. No more ‘wait and see’. No more sitting around hoping someone else will do something.
"From today, AshleyOut.com is urging all fans to participate in a full boycott of St. James’ Park, club merchandise and all businesses associated with the club until Mike Ashley leaves the club.
"The time for boycotts of individual games and for protests around the ground is over.
"If you choose to turn up to St. James’ Park while Ashley owns the club you are welcome to do so. But pleading ignorance is no longer an option."
The favourite to take over at Newcastle United is Manchester City assistant manager Mikel Arteta.
