What the Celtic pundits said as former ref told 'get your eyes tested' over Sead Haksabanovic penalty claim

It's a result that they'd rather forget but one that will ring in their ears for days to come.

A Marley Watkins goal has piled the pressure on Brendan Rodgers' Celtic side after it sealed a 1-0 Viaplay Cup last 16 win for Kilmarnock at Rugby Park, meaning hopes for a Treble like last season under Ange Postecoglou are already over. Callum McGregor has called it a 'crossroads' moment for the Celtic stars similar to the one under their former Aussie leader two years ago and now they must respond in games against St Johnstone and Rangers before the international break.

But the fallout from this will be sizeable even with it being so early in the season, with one piece of silverware already out of their grasp. The pundits have had their say on Celtic's off day in Kilmarnock as Rodgers' side and their transfer business goes under the microscope.

The former Parkhead goalkeeper was on BBC Sportsound and reckons that Rodgers will either need to dip into transfer territory again or work to strengthen the current crop's mentality. So far, they have signed six and Rodgers has admitted the need for some more older heads to arrive, having landed six aged 23 and under.

Bonner said: "The performance wasn't good enough and the quality was lacking, and you don't normally say that about Celtic over the last period. Whether he will gets players in that will improve that or whether he will need to work with the group that he has there to get the mentality right, as it's only the start of the season and it's a long season.

"He's got to go into that Champions League where expectations are high also and he has to retain that championship one way or the other. I am stunned because of the way they played, there is going to come a time that