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
5. Auston Trusty
Robust enough defensively - although was skinned by Gassama in a move that very nearly ended up as a goal. 6 | Getty Images
6. Liam Scales
Moved out to left-back, the Irishman lacks the necessary composure to give Celtic an attacking threat down that side. Couldn't back up Tierney. 4 | SNS Group
7. Dujon Sterling
Impressive display yet again on the right side of Rangers' defence. Won most of his duels and dealt with the occasion well. Becoming one of the first names on the Rangers teamsheet. 8 | SNS Group
8. Emmanuel Fernandez
Booked four minutes in for pulling back Duran and was fortunate not to see a second yellow for what looked like a foul on McGregor. Rode out the early storm and kept Celtic at arm's length. 7 | Getty Images