Celtic go 27 points clear at top of Premiership
Dembele (3), Sinclair & Henderson for Celtic
Substitute Dembele converted controversial penalty to make it 2-2
Watson & Wotherspoon had put Saints 2-1 up at half-time
A match full of controversy and thrilling action ends Scottish football's weekend and it is Celtic who again grab the headlines as they continue their unbeaten run at the top of the Scottish Premiership.
Join us again for more live action next weekend, when the focus is on the fifth round of the Scottish Cup.
Image source, SNSReferee Craig Thomson has been criticised by St Johnstone manager Tommy Wright
FT: St Johnstone 2-5 Celtic
Brendan Rodgers was short and sweet. Those dastardly stole him for so long. But the Celtic manager was obviously delighted with the win.
"I thought we played well in the first half, but I thought we could have defended better," he said.
"However, I knew we had won 4-2 here earlier in the season and our fitness always come through late in games and we scored some wonderful goals.
"Tommy will be disappointed. We got a bit of a rub of the green, but after that we were really fast and clinical - the last goal was sensational."
Image source, SNSFT: St Johnstone 2-5 Celtic
Quote MessageBrendan Rodgers: what can you say about him? He got close to the Premier League title a few years ago with Liverpool and you can see why he got close
Mark Burchill, Former Celtic striker on BBC Radio Scotland
@bbcsportscot & facebook.com/bbcsportscotland
Colm Kilbane: Thomson had a shocker. As a Celtic fan, I prefer when my team wins fair and square. That wasn't fair on the Saints.
Ryan Kenny: Craig Thompson, get him dropped - worst decision ever. Handed Celtic that the day shocking
Gee McCabe: Fantastic second half. Unstoppable!!!
Stephen Stockman: That lad Dembele, quite good at football.
FT: St Johnstone 2-5 Celtic
St Johnstone manager Tommy Wright has been measured in his response but has been highly critical of referee Craig Thomson.
"We should have had two penalties," he told BBC Radio Scotland. "I am not going to sit on the fence.
"When he (Scott Brown) makes contact with the player (Danny Swanson) and not a ball, that's a penalty, and he doesn't give it.
"Then Joe Shaughnessy is dragged down when the ball is in the air in the penalty box.
"As for Celtic's penalty, I genuinely don't know how he could give it. It has hit his hip and could have touched his elbow, but I don't know how he could have seen it.
Image source, SNS"That should not happen at this level of football. And that has happened twice now - when Brown pushed Anderson the other week.
"Granted, Celtic could go on to win the game without that decision as they have so much talent.
"But the decision changes the whole dynamics of the game.
"Regarding my players, I don't think they could have given me any more, but regarding the officials they could have."
FT: St Johnstone 2-5 Celtic
We are now waiting for the managers. St Johnstone's Tommy Wright is no doubt taking his time to calm down.
You can now read Chris McLaughlin's impressions of the match at McDiarmid Park.
Moussa Dembele scores a hat-trick as Celtic beat St Johnstone and go 27 points clear at the top of the Premiership.
Read MoreFT: St Johnstone 2-5 Celtic
Moussa Dembele was only on the park for the final 30 minutes after his return from injury.
However, his clinical hat-trick takes the French striker's tally for the season to 23 goals.
Image source, SNSMoussa Dembele (right) scored a hat-trick after coming on as a sub
FT: St Johnstone 2-5 Celtic
Quote MessageWe don't want to be talking about penalties when a team like Celtic are playing so well, but the referee has made a couple of bad mistakes
Mark Burchill, Former Celtic striker on BBC Radio Scotland
FT: St Johnstone 2-5 Celtic
Quote MessageCraig Thomson should be embarrassed about his performance after two critical decisions, but it is a sign of a good team to be ruthless
Willie Miller, BBC Radio Scotland pundit
FT: St Johnstone 2-5 Celtic
Chris McLaughlin
BBC Sport Scotland at McDiarmid Park
Quote MessageDembele and Sinclair are so clinical when it counts.
FT: St Johnstone 2-5 Celtic
Celtic stretch their lead at the top of the table to 27 points over Aberdeen.
That's their 23rd straight domestic victory and they are six short of their club record of 25 consecutive wins in the league.
Brendan Rodgers' side have now gone 29 domestic games unbeaten since the start of the season, stretching that new club record.
FT: St Johnstone 2-5 Celtic
There's a bit of afters as Mikael Lustig confronts St Johnstone midfielder Liam Craig forehead to forehead and the Celtic defender goes into the referee's book.
Meanwhile, referee Craig Thomson is booed off the park by the home support, angry at that penalty decision.
St Johnstone 2-5 Celtic
Quote MessageSt Johnstone will have a sense of grievance, but Celtic have been wonderful in this second half
Willie Miller, BBC Radio Scotland pundit
St Johnstone 2-5 Celtic
Nadir Ciftci has come on for Celtic - the Turkish striker's first appearance since an early-season Champions League qualifier - and replaces Patrick Roberts.
Liam Craig is on for St Johnstone, replacing Danny Swanson.
Moussa Dembele
Celtic are showboating now and two back-heels inside the penalty box from Mikael Lustig and Callum McGregor and Moussa Dembele fires home from 14 yards for a quick-fire hat-trick.
The Frenchman has only been on the park for 20 minutes.
St Johnstone 2-4 Celtic
That unbeaten run - indeed, their winning run - looks likely to keep rolling on unless there is a major upset in the dying minutes.
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Scott Sinclair
Celtic punish St Johnstone with a quick break. A bad touch from Brian Easton in the Celtic penalty box lets Scott Brown set Patrick Roberts clear and he sets up fellow winger Scott Sinclair for a cool finish.
That's the Englishman's 16th goal of the season.