The Hoops have had a nightmare so far with the young central midfielder at Parkhead.
Celtic manager Brendan Rodgers was backed by the board during the summer transfer window last year but not many of his signings have been hugely successful thus far.
Of the ten signings, on loan and permanent deals, made by the Northern Irish head coach last year, only three signings hit double figures for starts in the Scottish Premiership – Luis Palma, Hyun-jun Yang, and Paulo Bernardo.
Many of the additions made in that window have yet to nail down a regular spot in the starting XI at Parkhead and the club may look back on their business during that period with regret, as they potentially wasted millions on poor additions.
Gustaf Lagerbielke is one player who has struggled badly in Scotland, with just four league starts to his name, but the Hoops have also had a nightmare with Danish midfielder Odin Thiago Holm.
How much Odin Thiago Holm has cost Celtic so far
The Daily Record reported last summer that the Scottish giants agreed a deal worth £2.6m to sign the young whiz from Valerenga on a permanent deal.
Holm, as per Salary Sport, is reportedly on £4.8k-per-week with the Bhoys and this means that he is set to earn just shy of £250k for the season.
This means that Celtic have spent in excess of £2.8m, including the transfer fee and wages, for the 21-year-old flop so far, and they are yet to see much in the way of a return on that.
As you can see in the table above, Holm did not justify that expense with his minutes on the pitch as only two outfield players, both academy graduates, played less than him, and even Lagerbielke racked up more minutes in the Premiership.
