Pundit Alan Brazil insists "something is not right" at Celtic this season.
The Scottish champions recently dropped to second in the table after a 1-1 draw with Kilmarnock and Rangers' victory over St Johnstone.
And while Brazil is unsure of the specific issues going on at the Hoops, he feels frustrations at recent transfer windows could be a factor.
Speaking on talkSPORT, he said: "I don't know what's happening at Celtic at the moment. Clearly there's a problem, I might be wrong but I heard there was a problem with the pitch, and Rodgers wanted money for players but didn't get it.
"These are things I've been told that might not be 100 per cent true. What I do know is, look at the results, there's something not right...."
READ MORE: Why Tomoki Iwata is Celtic's 'Ronseal' midfielder
Meanwhile, Cameron Carter-Vickers is reportedly in line to make his Celtic injury comeback this weekend.
The centre-back has been sidelined through a hamstring injury he suffered last month.
However, The Scottish Sun claims Carter-Vickers, 26, could return for Celtic against Motherwell on Sunday.
It's reported the American international was given the go-ahead to train this week after three weeks of intensive treatment.
And as a result he is now ready to feature for Celtic at Fir Park this weekend should Brendan Rodgers decide to throw him back into the matchday squad.
Rodgers previously voiced concerns over players aggravating injuries with quickfire returns meaning a delayed return to action could be preferred.
But the report suggests Carter-Vickers has had no issues since returning to full training alongside his Parkhead team-mates.
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules hereLast Updated:
Report this comment Cancel