Martin O’Neill’s assessment of Thomas Frank from the past may play a role as the former Brentford and Tottenham Hotspur manager has been linked with the Celtic job.
Robbie Keane seems like the frontrunner at this moment in time, with O’Neill publicly endorsing Keane, but there are still plenty of names in the conversation.
Frank is available after being sacked by Spurs in the season. He would be considered quite a coup but, judging by what O’Neill has said in the past about the Dane, the 74-year-old would be pleased to see him take over.
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What Martin O’Neill said about Thomas Frank
Despite his short spell at Tottenham, Frank developed a positive reputation for his work on a modest budget with Brentford in the Premier League.
He caught the eye of many around the world, including the Celtic legend, who hailed his ‘excellent’ work during an interview with The Guardian in 2025.
Managing Celtic brings a very different challenge. Domestic dominance is non-negotiable, and European progression is always under the spotlight. But the respect Frank has earned across the game suggests he wouldn’t be fazed by that step up.

Thomas Frank’s personality aligns with Celtic
Yes, the Dane may have not won any major honours in his two positions, but his drive and outlook on life is one that supporters will be able to resonate to.
He has spoken openly about the importance of unity and collective belief, while his emotional Brentford exit, where he admitted he left “a big piece of my heart” at the club, highlighted the connection he forms with players and supporters alike. It has shades of Ange Postecoglou about it.
Those traits would resonate with the Celtic support, where personality and connection matter just as much as results.
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