GLASGOW, SCOTLAND - MAY 16: (L-R) Celtic Interim Chairman Brian Wilson, Majority Shareholder Dermot Desmond and Chief Executive Officer Michael Nicholson during a William Hill Premiership match between Celtic and Heart of Midlothian at Celtic Park, on May 16, 2026, in Glasgow, Scotland. (Photo by Craig Foy/SNS Group via Getty Images)
Every tournament produces players whose value explodes overnight. Celtic should be looking at these players.

With Martin O’Neill preparing for one of the biggest Celtic rebuilds in years.
The World Cup offers the perfect chance to find players and see how they perform against the world’s best players.
With each of these players, I’ll include a link to a YouTube highlights reel, and I have tried to keep them as realistic as possible.
Mbokazi
We will target the defence this summer; Mbokazi is one worth looking at.

The South African centre-back has power, aggression and good athleticism.
He plays in a front-foot system where defenders are asked to defend space, win duels and deal with transitions. It’s not far off what he’d face every week with us.
And he looks comfortable with it.
He’s strong in 1v1s, not afraid of contact, and has the recovery pace to play in a high line.
With Cameron Carter-Vickers coming back from injury problems and uncertainty in the squad, centre-back feels like an area that needs proper attention this summer.
There’s a bit of Bobo Balde about him too; he looks like he enjoys defending.
Benjamin Tahirovic
He’s 23 and a Bosnia international. He already fits the profile Celtic often targets.
At 6ft 3in, he adds real size. He’s strong in the air. Hard to knock off the ball. And uses his body well to protect possession.
All great qualities of a defensive-midfielder.

He’s also played in different systems at Roma, Ajax and Brøndby.
Games in Europe are often decided by control in midfield and small moments.
With a rebuild coming in that area, he feels like a player who could walk in and improve things straight away.
He has the physical side.
He has the technical side.
And he already has experience at a good level.
That combination makes him a very strong option for Celtic this summer.
Denil Castillo
Denil Castillo is 22 and plays for FC Midtjylland in Denmark.
He’s a box-to-box midfielder with real physical presence.

He started at LDU Quito, then moved to Shakhtar Donetsk before joining Midtjylland.
At Midtjylland, he’s become a regular starter. He’s contributed goals and assists. He’s also played in European games, where the tempo and pressure are higher.
For Celtic, he fits the kind of midfield profile that could be needed in a rebuild.
Physical enough for Scotland.
Technical enough to progress play.
And experienced enough across different leagues to not look out of place.
Alessandro Circati
If Celtic want to improve the defence for Europe and domestically, Alessandro Circati is a serious option.
He’s already one of the most promising young centre-backs in Europe. He plays for Parma in Serie A and is also a regular for Australia.

At 190cm, he has real physical presence. He wins a lot in the air. He’s strong on set pieces.
But his biggest strength is how calm he is.
Circati reads the game early. He doesn’t dive in. He positions himself well and stops danger before it develops.
In Italy, that defensive structure has helped him grow quickly. Serie A demands concentration, and he’s adapted well.
He also brings solid numbers in clearances and blocks, but it’s the consistency that stands out more than anything.
A defender who could grow into a key figure for Celtic.
Amara Diouf – Wildcard Pick
If there’s one name here that could explode onto the global stage, it’s Amara Diouf.
The Senegal winger is already seen as one of Africa’s top young talents. He came through Génération Foot, a club known for producing elite players.
And he’s already broken records.
He became Senegal’s youngest senior international at just 15 years and 94 days old.

He plays mainly off the left. His biggest weapon is pace. He accelerates quickly and can beat players in tight spaces or open ground.
Once he gets going, he’s hard to stop.
That’s something Celtic often need when teams sit deep.
But he’s not just raw speed.
He can play in the final third as well. He can slip passes in after drawing defenders. He can also cut inside and finish.
He plays with real confidence. No hesitation. No fear. He trusts his ability in every situation.
That’s rare at his age, especially at the international level.
For Celtic, this kind of profile is interesting.
There is uncertainty in wide areas long-term. Injuries and rotation have made consistency an issue. A player like Diouf would add something different.
He brings pace.
He brings direct attacking threat.
And he brings the ability to change games quickly.
Celtic have shown they can develop young attacking players and give them a platform.
Diouf feels like the type who could take that chance and run with it.
The challenge for Celtic is making sure they’re already ahead of the queue.
Key Takeaways
- Martin O’Neill seeks World Cup stars to strengthen Celtic’s squad this summer.
- Players like Mbokazi, a powerful centre-back, and Benjamin Tahirovic, a strong midfield presence, fit Celtic’s needs.
- Denil Castillo offers energy and technical skill in midfield, while Alessandro Circati could be a long-term defensive leader.
- Amara Diouf, a young Senegalese winger, brings pace and direct attacking threat, adding depth to Celtic’s front line.
- Celtic must act swiftly to secure these talents before they become sought after in Europe.