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
21. Ryan Naderi
Reacted sharpest to score the winner and was a menace all afternoon. Perhaps should have glanced a header into the net rather than wide in the second period. A willing runner. 8
22. Kevin Kelsy
More grunt than guile from the big Venezuelan, but he ran the channels all day. Saw a strike blocked by Carter-Vickers. 7 | Getty Images
23. Celtic subs
Kasper Hogh (above, 3) was brought on at half time but offered no threat whatsoever. The same could be said of Haissem Hassan, James Forrest and Sebastien Tounekti. Shim Mheuka also appeared.
24. Rangers subs
McInnes used his subs well to solidify and replenish his team. Ben Godfrey, Cammy Devlin, Tochi Chukwuani, Findlay Curtis and Badredine Bouanani were all brought on at various stages. | PA