2146: Thanks for joining me online this evening. It's been a tremendous night for St Johnstone and Inverness Caley. We'll be back on Wednesday night for Hibernian v Dundee United. Good night.

2143: Jody Morris is the Sportsound man of the match, as chosen by Derek Ferguson.

2141: Add Ross County knocking Hibs out of the Scottish Cup and the odds would been ridiculous.

2138: What odds would you have got on Celtic losing 4-0 to St Mirren last week and Rangers being humbled 4-1 at St Johnstone?

2133: Kenny Miller side-foots the ball into Graeme Smith's arms from 16 yards.

2133: Highlights of St Johnstone's win will be online here at the BBC Sport site at midnight.

2131: The St Johnstone fans are in party mode for these last few minutes.

"Can we make sure Stuart Cosgrove's mic is broken at the weekend? Thank you!" A text from Alan in Oban hits the nail on the head for Rangers fans. The Off the Ball host will never let Teds forget this thrashing.

2128: Morton take the three points in Greenock, bringing Ayr United's good run to an end. Those two teams look set to fight it out to avoid the relegation play-offs.

2125: It has been a good second half for Forfar, who have put four past East Stirlingshire.

2124: It's a doing for Rangers. St Johnstone have been sharper, cleverer and hungrier.

Murray Davidson puts the game out of sight, scoring from close range into the bottom corner of the net.

Welcome to Lynette in Ballyclare, who has texted 80295: "As a 'Norn Iron' supporter I know big Lafferty is a better player than you lot in Scotland think! Get off his back. If Walter played him the right way he would impress you all!"

2116: Walter Smith removes Danny Wilson from the game and sends on Nacho Novo. Lee McCulloch moves back to join Davie Weir in the middle of the defence.

2116: Jody Morris dives to head a Rangers cross clear. BBC Radio Scotland match summariser Allan Preston says the Saints midfielder ran 60 yards to make that clearance.

2112: So if the Saints can hang on to win, they will be two points behind Hearts. They have a home game against Dundee United and an away match at Aberdeen before the split. Hearts still have to go to St Mirren and host Kilmarnock.

2109: Davie Weir has equalled full-back Jock "Tiger" Shaw's record of playing for Rangers at the age of 39 years and 325 days. That record has stood since 1945.

2106: Steven Davis floats a free-kick over the Saints defence, which bounces off Lafferty and straight to Graeme Smith in the home goal.

Bringthemonjpn on My Sport "What has happened to the Rangers defence? St Johnstone are getting more chances than there are punters at the game. We need more snow!"

2104: The thin blue line are holding out as Steven Naismith tries to stab the ball home.

2102: Lovely skill shown by Rangers full-back Steven Whittaker, pirouetting twice as he moved from right to left. The Saints players don't know whether to tackle him or curtsey.

2100: You have to hand it to Derek McInnes and his St Johnstone players. They look fresh despite this being their seventh match in 24 days.

2058: But Saints clear the danger. The home side are under more pressure than they were in the opening period.

2057: Big Kyle Lafferty must be listening to Patrick. The Irishman wins a free kick just outside the box on the left after being fouled by Michael Duberry.

Patrick Bateman on My Sport "Lafferty is on - we've officially given up on this game! Come on, big man, a couple of goals please?"

2053: Defender Danny Wilson has a bloody nose and is being prevented from returning to the fray by the fourth official, much to the chagrin of Ally McCoist, Rangers' assistant manager.

2052: Grainger's first corner is cleared for another, and his second effort comes to Jody Morris, who blasts wide.

2051: St Johnstone have a corner. Danny Grainger to deliver...

2050: A vision of 1950s Scotland...

2048: The attendance at McDiarmid Park is 6,189. Evidently, plenty of fans have stayed at home with a hot water bottle at their toes and a transistor radio at their lug.

2046: The second half begins.

"I think that the games are sapping the life from Rangers. And we will have to still grind out another 4-5 games. But if any man can get that from a team it's Walter." A Rangers fan texts 80295 to reassure his fellow bears.

2043: Walter Smith makes two changes for the second half. Kris Boyd and Kevin Thomson make way for Kyle Lafferty and Maurice Edu.

2041: Of course, in the Scottish Cup Rangers let in three at home to Dundee United.

2038: Who could have guessed this St Johnstone v Rangers scoreline? Rangers have never conceded more than one goal in the league all season.

2034: Queen's Park and East Stirlingshire are enjoying 1-0 half-time leads in the Third Division.

2033: Elsewhere, it's goalless at Cappielow, where Morton and Ayr United are battling for First Division survival. In the Second Division, the only goal has been at East Fife, who lead Brechin 1-0.

"A sixth season in the First Division for the once proud Dundee looks likely. Bring back Jocky!" An anonymous text highlights that the Dee are 2-0 down at Dunfermline, and with Inverness scudding Ross County 3-0, the title is slipping from their grasp.

2025: Walter Smith looks none too impressed with his players, though I dare say he'll credit St Johnstone for this first-half display. They have been tremendous, winning every loose ball and making the Rangers back four dizzy.

Liam Craig heads a third goal for the Saints. Again, the ball takes a deflection off a Rangers player on its way into the net - this time it's Lee McCulloch who is the unfortunate party.

2017: Cillian Sheridan whizzes down the left under pressure from scampering wee Steven Davis and blasts into the side netting. Saint Johnstone look the team more likely to score.

A text to 80295 from Bob in Montrose. "Re 1955 it has to be Jim Jefferies. St Johnstone are rampant. McInnes for Celtic Park."

2012: Graeme Smith smothers a Steven Naismith lob at close range as the Glasgow side push for the equaliser.

2011: As if it hasn't been a turbulent enough day for Cowdenbeath , their goalless home match against Stirling Albion has been postponed after 18 minutes because of a snowfall.

2009: Back in Perth, Lee McCulloch volleys a right-foot shot high and wide from the edge of the box. He has scored a few from that position over the years.

2007: Maybe Dave is a Dundee fan, for they are losing 1-0 to Dunfermline. Things are not going well for Gordon Chisholm and my former BBC colleague Billy Dodds.

"The game at East End Park shouldn't be on, hardly anyone here, the pitch is a mess and it's just plain stupidity!" Dave by text to 80295 is none too chuffed at events in Dunfermline.

2003: What an amazing opening 18 minutes! I think it might have something to do with the temperature - the players are looking for an excuse to cuddle together to stay warm. Remember those public safety films you'd see on the telly in the late 1970s, advising you what to do if you fear someone is suffering from hypothermia?

Nurse! My fingers! The goals are raining in at Perth. Rangers pull one back from Sasa Papac, the Bosnian picking up Steven Davis's intelligent pass through the crowded penalty box and smacking a low shot past Graeme Smith at his near post.

2000: Looks like that deflection for St Johnstone's second came off Davie Weir, not Lee McCulloch.

Well, I never. Chris Millar moves in from the left touchline and blasts a drive into the net, via a nasty deflection off Lee McCulloch.

1955: So who is most worried - Hearts manager Jim Jefferies or Rangers boss Walter Smith?

What a goal by Cillian Sheridan! Marco van Basten would have been proud of the Irishman's left-foot dipping volley that whizzed over Allan McGregor.

1952: Steven Anderson is scolded like a naughty schoolboy by Master Tumilty for a robust challenge on Rangers striker Kenny Miller. That looked a fair tackle to me.

1950: Hearts currently occupy sixth spot in the league. They are five points ahead of St Johnstone but have played a game more.

1948: The first chance goes to St Johnstone, Filipe Morais hoofing a shot straight at Allan McGregor from just outside the box.

1946: This is an important game for the Super Saintees. Not only have they all but guaranteed their SPL status in their first season back in the top flight, but they could yet finish in the top six.

1945: And we're off! St Johnstone in blue, Rangers in white.

1943: The match at McDiarmid Park, you may be aware, is a rearranged game, after the Perth pitch was deemed unplayable earlier this year less than an hour before kick-off.

1941: So, this is officially British summer time? OK, summer time in terms of the clocks. But what about this weather? Blizzards in Perthshire, Aberdeenshire, the A82 passable only for those in four-wheel drive vehicles, five matches called off because of snow or flooding... Argh. I'm beginning to sound like Les Dawson dressed up as an old woman down the Post Office.

1940: The referee in Perth tonight is Mike Tumilty.

1938: I'm looking at pictures of McDiarmid Park coming into our building here at Pacific Quay in Glasgow. The pitch looks in reasonable condition, though snow can be seen in the hills in the distance.

1932: The Ibrox side are 10 points ahead of Celtic with two games in hand. They have nine league games remaining.

1931: Rangers need only four more SPL victories to retain their league title, assuming Celtic don't slip up further.

1930: We will have highlights of St Johnstone v Rangers available on the BBC Sport site at midnight...for UK users only.

1928: The guys are discussing who should be Scotland's player of the year. Rangers players are getting plenty of mentions - Davie Weir, Steven Davis, Kris Boyd. Andy Webster at Dundee United gets pundit John Robertson's vote. And how about Celtic's Aiden McGeady?

1925: St Johnstone will be playing their seventh game in only 24 days, a punishing schedule for Derek McInnes and his team.

1921: And Rangers go with: McGregor, Whittaker, Weir, Wilson, Papac, Naismith, McCulloch, Thomson, Davis, Boyd, Miller. Subs: Alexander, Edu, Novo, Smith, Lafferty, Little, Fleck

1920: The St Johnstone team to take on the Ibrox side is: Smith, MacKay, Duberry, Anderson, Grainger, Morais, Millar, Morris, Craig, Sheridan, Deuchar. Subs: Main, Irvine, Sheerin, Davidson, Swankie, Reynolds, Samuel

1915: A warm welcome on a freezing evening to St Johnstone v Rangers, plus score updates from the Scottish Football League.