St Johnstone vs Rangers LIVE as Cortes and Silva start in shake up for the visitors

Celtic opened the door to Rangers at the top of the Scottish Premiership and now it's a question of whether the Light Blues can seize their chance.

Philippe Clement has instilled a ruthless streak in the Ibrox side and they will need to show that today against Craig Levein'sSt Johnstone.

But the Saints need three points of their own as they fight it out at the other end of the table, with bottom side Livingston picking up a rare win on Saturday.

So it's all to play for in Perth in what should be a fascinating afternoon of lunchtime action as Rangers look to sit at the league summit for the first time in just over two years.

A victory would take them two points clear at the top after the champions and fierce rivals Celtic were held at home by Kilmarnock

Find out if they can take the opportunity by following all the build up, match and reaction right here in our LIVE blog.

Butland, Tavernier, Goldson, Souttar, Barisic, Lundstram, Cantwell, Diomande, Wright, Cortes, Silva.

Subs: McCrorie, Ridvan, Dessers, Lawrence, Sterling, Balogun, King, Raskin, McCausland.

These two sides met on this day in 1981 at Ibrox in a Scottish Cup Fourth Round replay after an epic 3-3 stalemate at the old Muirton Park just four days prior. A young Alistair McCoist was on the scoresheet in both games, and it certainly wouldn't be the last time he scored at Ibrox over a goal-laden career.

A double from Colin McAdam and a strike from Gregor Stevens were enough for Rangers to secure a 3-1 win in the replay and they would go on to lift the famous old trophy that season with a 4-1 victory in the Final against Dundee United in another replay after a 0-0 draw at Hampden.

Matthew MacDermid will be the man in charge for this high noon Sunday showdown - in