New Celtic star Daizen Maeda has been targeted by bigoted trolls.
Users hijacked his Wikipedia page and set up a fake Twitter account in his name.
They edited his profile to claim he was linked to terrorists and a Celtic ultras fans group.
Scottish Football Supporters Association chairman Andy Smith condemned the behaviour as “derogatory”.
The edits were made on January 2.
One bogus claim also alleged Maeda had made offensive comments about Rangers and the Queen in an interview after he switch to Parkhead from Japenese side Yokohama F Marinos.
But the edits were spotted on Sunday afternoon and removed.
A Twitter profile was also set up in his name which contained offensive comments towards Rangers fans and racist comments about the Japan international.
The online slurs were posted just hours after it was announced the former Maritimo and Matsumoto Yamaga forward had joined Ange Postecoglu’s side.
Andy Smith, Chairman of the Scottish Football Supporters Association, said: “It’s the silly season, with the Glasgow derby being cancelled yesterday.
“Whilst there is a lot of humour and banter in football, and most of it is fine, this goes beyond what is acceptable in 2022.
“It’s time Scottish football moved on from tribalism of any kind.
“There’s no place for any derogatory remarks against any religion or race.
“If all fans came together in a room, we wouldn’t agree about everything, but we would all agree that there’s no place for this now, and certainly not in the future.
“What they have done actually isn’t funny.”
Maeda, who has joined on loan for the rest of the season, was unveiled on Hogmanay, alsongside fellow Japanese duo Reo Hatate and Yosuke Ideguchi.
The trio join countryman Kyogo Furuhashi who has already established himself fans’ favourite after signing for the Celts last summer.
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