Rangers defeated Celtic in the Old Firm derby, with Ryan Naderi scoring the decisive goal to complete a disastrous week for Celtic. The result exposed Celtic’s lack of structure, intensity and attacking threat, while Rangers appeared organised, purposeful and superior in midfield. It also widened the title race and intensified questions about Celtic’s management, squad and board.

Naderi converted from close range after Viljami Sinisalo parried Kim Min-su’s long-range shot into his path. Celtic manager Martin O’Neill changed formation and made several substitutions, but his side created little, while several summer signings struggled under the pressure. The defeat followed Celtic’s recent losses and European exit to Lask, prompting renewed doubts over key players, recruitment and the club’s footballing leadership.