Griffiths facing fresh probe
The Scottish Football Association are to look at new footage appearing to show Leigh Griffiths singing an abusive song about former Hearts player Rudi Skacel.
The alleged incident could land the Celtic striker in more trouble with the governing body and his club.
The 23-year-old former Hibernian player has already been fined by Celtic and faces SFA disciplinary charges after he was filmed singing about Hearts' financial strife in a bar before the recent Edinburgh derby.
Speaking last week, Celtic manager Neil Lennon, who signed Griffiths from Wolves in January, said: "I don't want him doing any more - otherwise his career at Celtic won't be as long as he maybe wants it to be."
Griffiths was originally charged with a breach of disciplinary rule 86, which covers 'not acting in the best interests of Association Football'.
The SFA could issue a second charge or re-issue the original charge taking into account the new footage which would make it a more serious matter.