Norwich City boss Neil Adams has urged his players to not respond to criticism through social media.
Goalkeeper John Ruddy tweeted that he was "disappointed" with fans, after he received ironic cheers during last week's 2-1 loss to Reading.
Adams told BBC Radio Norfolk: "We've spoken to them about it. Obviously I'm aware of the incidents.
"We've said to them that ideally they shouldn't be getting involved in that type of thread."
Ruddy, who has one England cap, had a poor game against the Royals, misjudging a corner for Jake Cooper's winner and almost dropping an Oliver Norwood strike into his own net.
There were sarcastic cheers of approval from some supporters at Carrow Road when he punched clear a cross from a set-piece later in the game.
And afterwards he said on Twitter: "5 years of LOYAL service for this club & that's how some fans act after a couple of bad performances. #Disappointed."
His manager Adams added: "We take the plaudits when things are going well, and by the same token you do get criticism and some times you have to bite your lip - that applies to during the game with supporters and afterwards on social media.
"We accept that social media is huge. But sometimes you have to take it on the chin and try not to get involved in things that are going to escalate."
Adams himself is under increasing pressure, with the Canaries having won just one of their last 10 league games, a run which has seen them drop from first to 11th in the Championship.
And the Norwich boss insists even Ruddy, who has made 155 appearances across five seasons for City, could lose his place in the side.
"John has played for his country and rightly so, he's a top goalkeeper. But by his own admission he hasn't been playing as well as he can recently," said Adams.
"By the same token he has kept us in games this season. I'm certainly not going to pick teams based on the biggest names."