Rangers cut the gap at the top of the Premiership to two points after winning 1-0 away to Celtic.
Derek McInnes’ men recorded their second Old Firm win within seven days, backing up last weekend’s 3-0 Premier Sports Cup triumph at Ibrox with this deserved triumph in the league.
German striker Ryan Naderi scored the only goal of the game on 33 minutes, reacting quickest inside the penalty box to net after Kim Minsu’s strike was parried back into the danger area by Celtic goalkeeper Viljami Sinisalo.
Rangers created the better of the chances and had a second-half goal by Olwethu Makhanya disallowed for handball in the build-up.
Rangers remain in second place in the standings, but are now just two points behind the champions, who suffered their first league defeat of the campaign.
The spotlight will now fall on Celtic boss Martin O’Neill, who has presided over three poor defeats in the space of a week.
The domestic game now shuts down for three weeks, with an international break coming up.
We give the players a mark out of ten for their performances at Celtic Park.
. GLASGOW, SCOTLAND - SEPTEMBER 20: Rangers' Ryan Naderi (L) celebrates scoring to make it 1-0 during a William Hill Premiership match between Celtic and Rangers at Celtic Park, on September 20, 2026, in Glasgow, Scotland. (Photo by Craig Williamson / SNS Group)
Ryan Naderi, left, scored the winning goal for Rangers at Celtic Park. | SNS Group
17. Kieran Tierney
Usually a left-back, Tierney was pushed higher up as a winger. Started the game brightly and had a shot on 30 minutes hit the top of the bar. That was as good as it go as his level steadily decreased thereafter. Taken off on 71 minutes. 5 | SNS Group
18. Kim Min-su
A threat all afternoon. It was his shot that led to Naderi's opener and the South Korean showed the ability to find pockets of space and also drive at his opponents, 7 | SNS Group
19. Djeidi Gassama
Displayed discipline to play a wide role that also required the defensive part of the game. Was unlucky not to score when he hit the post with a clipped effort. Came off for Curtis. 7
20. Camilo Duran
Asked to lead the line, the Colombian had some early skirmishes with Fernandez. Denied proper service and didn't enjoy living off scraps. Started to tire as the game went on and made way after 71 minutes. 5 | SNS Group