Celtic Football Club will launch an investigation after sick messages about Fernando Ricksen appeared online.
The former Rangers star, who suffers from Motor Neurone Disease, was targeted by a Celtic-supporting troll on social media saying he "couldn't wait for Fernando Ricksen to die".
The action by the Hoops comes after ex- Gers ace Nacho Novo called on the Parkhead club to ban the fan from their ground.
Ricksen , 43, was diagnosed in 2013 with MND and is currently in a hospice in Airdrie.
In a statement Celtic said: "We will fully investigate this matter and of course take all appropriate action."
In a post on Instagram on Friday said he was disgusted at the abusive comment which the Record has refused to fully disclose due to its nature.
Novo wrote: "I’m absolutely discussed about that wee p***k can speak about someone who can’t defend himself I hope the media put this comment in the papers because when a comment was said to Scott Brown about his sister it was front page news.
"So I hope Celtic do the same with that wee b*****d and ban him for life. We don’t want any favours from anybody but we just want justice."
Rangers recently vowed to ban a fan for life after a sickening comment was allegedly made to Celtic skipper Scott Brown about his tragic sister outside Ibrox Stadium.
Brown lost his beloved little sister Fiona to cancer in May 2008.
