Well, there will always be a minority of petty-minded, grudge-bearing trolls ready to do that.
Those who are more mature move on.
He fucked us over, last year of his contract so we agreed a fee with Chelsea of around 25 million, he spoke to them, agreed everything then pulled out of the deal at the last minute because "he wanted to get himself fit", came back, used our facilities to get himself fit again, let his contract run down then fucked off for nothing when the next window opened. Since then he has slagged the club off at every opportunity, saying we did nothing for his development etc... He's a rat and deserves all the abuse he will get n Sunday.