Celtic Fans Turn on Defender After Beşiktaş Error as Martin O’Neil Faces Selection Call

Celtic supporters have made their feelings known after a difficult European night against Beşiktaş, with one player in particular becoming the target of intense criticism following a costly mistake.

The reaction from supporters has been particularly strong because the error came in a match where Celtic needed concentration and composure from the beginning. Instead, one moment of poor decision-making left fans frustrated and questioning whether the player should continue to be trusted in Martin O’Neil’s starting XI.

The incident quickly became one of the major talking points among Celtic supporters following the game, with social media filled with complaints about the player’s performance.

For some fans, the issue was not simply the individual mistake. They argued that it highlighted wider concerns about the defender’s consistency and ability to deal with pressure in important matches.

Celtic fans demand changes

The arrival of Martin O’Neil has naturally brought renewed attention to Celtic’s squad and the players he chooses to rely on.

Supporters will expect the manager to make difficult decisions, particularly when a player produces a performance that leaves the team vulnerable.

That is exactly what has happened following the Beşiktaş match.

A section of Celtic supporters have questioned whether the defender should be given another opportunity from the start, with some going as far as demanding that O’Neil never select him again.

The criticism has been severe.

Fans have pointed towards the mistake as evidence that the player is not currently providing the level of reliability required at the back, especially when Celtic are competing against strong European opposition.

There is also an argument that O’Neil cannot afford to ignore performances like this.

A new manager often has a short period in which to assess his squad before making changes, and supporters will be watching closely to see whether the Celtic boss reacts to what happened in Turkey.

The player at the centre of the criticism

The Celtic defender attracting the majority of the criticism is Liam Scales.

Scales found himself under the spotlight after his error against Beşiktaş, with supporters openly expressing their frustration over his contribution.

The defender has previously experienced periods where his performances have divided opinion among the Celtic support. While he has also produced displays that have earned praise, his latest mistake has reignited questions about whether he should remain a regular starter.

For some supporters, the problem is consistency.

They believe Celtic require defenders who can remain calm under pressure and avoid giving opponents unnecessary opportunities. When those mistakes happen in European football, the consequences can be even greater.

That explains why the reaction has been so strong.

Why the mistake has caused such anger

Errors happen in football, and even experienced defenders make mistakes. However, supporters rarely judge an incident in isolation.

The timing, opposition and circumstances all influence the reaction.

Against Beşiktaş, Celtic were facing a team capable of punishing defensive weaknesses. That meant every misplaced decision or lapse in concentration carried greater significance.

For Celtic fans already concerned about defensive performances, Scales’ mistake therefore became another reason to question whether changes are needed.

The frustration is also connected to expectations.

Celtic are expected to compete for domestic trophies while also making an impact in European competition. Supporters consequently want the strongest possible XI selected for the biggest matches.

If O’Neil believes Scales remains the best option available, the manager will have to show that decision is based on footballing reasons rather than simply maintaining the status quo.

What could Martin O’Neil do next?

The situation now presents O’Neil with an early selection dilemma.

The manager could decide that the mistake was an isolated incident and continue to back the defender. That approach would give Scales an opportunity to respond on the pitch and demonstrate that the Beşiktaş error does not define his ability.

Alternatively, O’Neil could make a change.

Dropping Scales would send a clear message that performances and mistakes will have consequences under the new manager.

However, there is also a risk in making a decision purely because of fan pressure. Managers must consider training performances, tactical requirements, injuries, the strengths of alternative defenders and the overall balance of the team.

That is why the coming team selections could be particularly revealing.

If Scales starts the next important fixture, it would suggest O’Neil is prepared to stand by him despite the criticism.

If he is left on the bench, supporters will immediately see it as evidence that the manager shares at least some of their concerns.

The verdict from Celtic supporters

One thing is already clear: Celtic fans are unhappy.

The criticism directed at Scales following the Beşiktaş match shows just how quickly supporters can turn against a player when a defensive error becomes costly.

Some want the defender dropped immediately. Others will argue that one mistake should not erase the good moments he has produced previously.

Ultimately, the decision belongs to O’Neil.

The Celtic manager now has to decide whether Scales deserves another opportunity to prove himself or whether the Beşiktaş performance should lead to a change at the back.

For the defender, the best response is obvious: produce a strong performance the next time he gets on the pitch.

For O’Neil, meanwhile, the message from the Celtic support is equally clear.

They want to see a reaction — and many fans believe that reaction should begin with changes to the starting XI.