Rangers dampened Celtic's Scottish Premiership title celebrations by ending a six-game winless run against their Glasgow rivals with a 3-0 victory on Saturday.

Todd Cantwell, John Souttar and Fashion Sakala scored the goals as Michael Beale secured his first Old Firm win as Rangers boss.

"It's been a tough season overall for the fans and that one today should send them home with a bit more oxygen and optimism for what it going to be an exciting summer at the football club," said Beale.

"If we can bring that energy from the stands, I'll push the boys on the pitch to bring the same energy and then next season we can give ourselves a big chance to do something we can really be proud of."

Celtic retained their title with four games to spare last weekend but defeat means Ange Postecoglou's men now cannot set a new club record points tally.

The roles were reversed from previous meetings between the sides this season as Celtic paid for a slow start and a failure to take their chances.

"It was a disappointing day for us. We never really got going," said Celtic boss Postecoglou, who gave some of his fringe players a chance to shine.

"We had a couple of really good opportunities to get back in the game and we let ourselves down in those areas."

Cantwell smashed home the opener just five minutes in after Joe Hart parried John Lundstram's fierce strike.

The visitors should have been level immediately as Oh Hyeon-gyu hit the post when one-on-one with Robby McCrorie.

Liel Abada also missed a glorious chance to equalise before Rangers doubled their lead through Souttar's header from a corner.

McCrorie was making just his second appearance of the season with the youngster given his chance to stake a claim to be number one next season by Beale.

He could not have done his chances any harm as he produced another stunning save just after the break to prevent Matt O'Riley pulling a goal back.

A bad day for Postecoglou's men was summed up 20 minutes from time when a calamitous mix-up between captain Callum McGregor and Carl Starfelt allowed Sakala to run clean through and round Hart before slotting into an empty net.

Just Celtic's second league defeat of the season sees the gap between the top two reduced to 10 points with three games remaining.

At the other end of the table, a Jordan White hat-trick lifted Ross County off the foot of the table at Dundee United's expense with a 3-1 win at Tannadice.

Kilmarnock also boosted their survival hopes by beating Livingston 2-0.

Motherwell are now mathematically safe after a 2-0 win at St. Johnstone lifted them up to seventh.