Celtic's 2-1 defeat to Dundee United today has dampened spirits around the Glaswegian club, with fans and pundits looking for someone to blame for their disappointing loss.
Manager Ronny Deila has already confirmed that striker John Guidetti could be left out of the side in upcoming games having endured a mini-drought in front of goal, but club hero Murdo MacLeod is laying the blame at someone's feet.
MacLeod, who scored 55 goals in 281 games as a midfielder for Celtic in the 70's and 80's, says that the defence just isn't good enough, and that Dutchman Virgil van Dijk is largely to blame because of his selfish playing style.
"As we have seen this season in Europe, Celtic's back four don't operate as a unit," said MacLeod. "I don't think Van Dijk helps anyone. Van Dijk plays for Van Dijk."
MacLeod's comments come at a particularly interesting time given that van Dijk is being incessantly linked with a move away from Celtic in the January transfer window.
Interest from the Premier League isn't in short supply, with Arsenal, Liverpool, Manchester City, Manchester United, Newcastle, Southampton, Sunderland, Tottenham and West Ham all believed to be monitoring the 23-year-old.
The former Groningen man has impressed for Celtic ever since his 2013 move, and an £8m asking price has been suggested with so much interest in him ahead of next month's transfer window.
Yet if he continues to be criticised by Celtic legends, clubs may think twice about trying to sign him - though, that may actually be good news for Deila and Celtic.