Celtic’s title defence hinges on a costly overhaul, pundit Chris Sutton warned that the Glasgow club will need to spend £50m next summer to stay competitive in the Premiership and the Champions League. Sutton said Martin O’Neill’s late‑season push was brilliant, but the squad lacks depth after a fractured campaign and a thin defensive line.

Sutton highlighted that key departures—Reo Hatate, Daizen Maeda, Arne Engels—could force Celtic to replace high‑profile players with fresh talent. He noted the club’s Champions League qualifier looms on August 18/19, a match that could reshape fan sentiment and the club’s European ambitions and secure a lucrative group stage spot for next season ahead of the transfer window.

Current squad fatigue was evident last season, and Sutton questioned whether the existing roster can win the Premiership again. He warned that without reinforcements, Celtic risk falling behind rivals like Rangers, who have appointed Derek Mc Innes after Danny Röhl’s exit, and Hearts, eyeing a fresh start under new management to challenge for the title.

Sutton’s assessment underscores the urgency for Celtic’s board to commit to a summer rebuild. A £50m spend could replace departing stars and add depth, ensuring the club remains a dominant force domestically and a credible contender in Europe’s premier competition and secure a place in the Champions League group stages next season before the transfer deadline approaches.