Martin O'Neill leaving Celtic would not surprise Paul Lambert, but the former club captain would be "shocked and disappointed" if the veteran manager was to be sacked.

Watch highlights as Ryan Naderi's first-half goal earns Rangers a deserved Scottish Premiership victory at rivals Celtic.

Martin O'Neill says he will use the international break to reflect on his position after Celtic suffer three consecutive defeats in big games.

Tom English reflects on the first Old Firm league game of the season, in which Rangers repeated their League Cup win over Celtic.

Former Celtic captain Scott Brown believes a win for the Scottish champions against Rangers on Sunday "changes the game" after a turbulent week for Martin O'Neill's side.

Early season momentum has shifted dramatically going into the first Old Firm league derby of the season on Sunday at Celtic Park.

After another defeat, keeping the faith is surely becoming more testing for Celtic's fans, writes Tom English.

O'Neill, who is from Kilrea, has enjoyed a highly decorated career both as a player and a manager.

Chris Sutton believes his former side have "great concerns" despite a winning start to the Scottish Premiership season. The next four days will tell us whether those worries are justified.

Danny McGrain, described by Celtic as "Scotland's greatest-ever full-back", has been diagnosed with Alzheimer's disease, his family confirms.

Six males and one woman are accused of various offences, including assault, possession of an offensive weapon and breach of the peace.