The Republic of Ireland defender joined the Bhoys on loan, but a series of disastrous performances plagued his time in Glasgow.
This post has drawn the attention of these Celtic fans who can’t believe how bad Duffy was.
“Made Rafael Scheidt look like a prime Franz Beckenbauer. An absolute disaster of a signing.”
“A mess total disaster when we could offered the big man another year. At least we would have known what we were getting.”
“Sorry but hallelujah! Such a waste.”
Do you think that Duffy was one of the worst Celtic signings ever?
Yes, he has to be up there
No, he wasn't that bad
This post continued to draw in Bhoys fans who had their say.
“Worst player we had”
“Whoever scouted and recommended him should be away as well, he was never the type of centre half we needed.”
“That’s a disgrace btw, there are 2 games left we could at least have kept him til it’s finished or done it months ago. It’s no worked out but no need to humiliate the guy”
“Goes down as one of the Top 5 worst Celtic signings ever.”
Celtic have had an awful season and are going to end the campaign miles off the top of the table, and in many ways, Duffy’s signing summed up the season.
For whatever reason, the move didn’t work, and Celtic will now have to try and find a replacement in the summer for Duffy.
It is clear that these Bhoys fans will not remember his time in Glasgow fondly.
In other news: £1.62m-rated Celtic man tipped for huge accolade