Slovakian managed the Parkhead side during the 1998/99 season, which included 5-1 victory over Rangers.
Celtic captain believes a tenth consecutive Premiership title is still an achievable ambition for the Parkhead club.
Celtic boss says club didn't abuse any privilege and were 'totally professional' at their Middle East training camp.
Manager Neil Lennon says another player who is self-isolating following Dubai trip has Covid-19.
Club says all other players, management and members of backroom team have tested negative for coronavirus.
Croatian defender enjoyed a successful loan spell under both Brendan Rodgers and Neil Lennon in Glasgow.
First Minister believes Celtic have questions to answer over their trip to Dubai amid heightened coronavirus restrictions.
Parkhead club claim training camp was arranged months ago and was approved by all relevant authorities.
Celtic boss says his side in much better shape than in the weeks following their October defeat to Rangers.
Large crowd of demonstrators chant 'sack the board' ahead of club's Premiership clash against Kilmarnock.
Neil Doncaster urges Celtic and Rangers supporters not to congregate in houses and pubs to watch Saturday's match.
Laxalt has completed a deadline day move from the Serie A giants.
The Republic of Ireland defender has joined Neil Lennon’s side on a season-long loan from Brighton.
The Scottish champions swept past KR Reykjavik with the minimum of fuss.
Celtic boss Neil Lennon says striker has reacted well to criticism of his weight since returning for pre-season.
Writ has been served on the Parkhead club by Thompsons Solicitors, who represent survivors of sexual abuse.
Midfielder says Parkhead club didn't get 'closure' at end of last season and are now determined to win ten titles in a row.
The 32-year-old is coming to the end of his contract having made 67 appearances for the club.
Celtic manager says pressure is off his squad as they chase a historic tenth title in a row.
Celtic FC Foundation will use the money donated to 'put food on the table, as well as to distribute urgent essentials'.