Graham Dorrans, who made his return from injury in midweek against Villarreal, continues his rehabilitation after injury as he replaces Lassana Coulibaly in Rangers' midfield.

Another change for Saints as Danny Swanson comes on for Drey Wright.

Tony Watt pounces on a poor back-pass from Nikola Katic, but the striker is unable to make the Croat pay and his shot slips across goalkeeper Allan McGregor and wide of the back post.

It's Saints boss Tommy Wright's turn to make a change.

On-loan Ipswich Town midfielder Tristan Nydam comes on for Liam Craig.

First change for Rangers as midfielder Ovie Ejaria comes on for right-back James Tavernier.

A change of shape for Steven Gerrard?

St Johnstone at last threaten the goal as Blair Alston plays in Tony Watt, but the striker seems to hesitate and the former Celtic striker's shot is blocked.

A well worked move and Alfredo Morelos is behind the Saints defence.

But goalkeeper Zander Clark comes out quickly to block from close range.

Celtic manager Brendan Rodgers has told BBC Scotland that fans should be understandably alarmed by their start to the season after their defeat at Kilmarnock.

"When you are a huge club, the demand is to win," he said.

"In the last couple of years we've done that really well and playing in a style that is synonymous with the club. It hasn't been the same but we have to work to make it better.

Image source, SNS

We're off again at Ibrox and the score reflects the balance of play according to the official match statistics.

St Johnstone have still failed to force a save from goalkeeper Allan McGregor.

Image source, SNS

If it stays like this in the second half, Rangers will be up to second place behind Hearts in the table on goal difference ahead of Hibs and Livingston.

All the action from this weekend's six Scottish Premiership matches is on Sportsound on BBC Two Scotland at 18:00.

Or, if you prefer, you can watch the repeat at 23:45 on BBC One Scotland.

Image source, BBC Sport

Alfredo Morelos will be breathing a sigh of relief.

With recent signing Kyle Lafferty breathing down his neck having scored in the 2-2 draw with Villarreal while the Colombian was suspended, he has ended a six-game stretch without a goal.

It's Morelos' first since a hat-trick away to Kilmarnock in the League Cup last month - and his seventh of the season.

Image source, SNS

James Tavernier sent Rangers on their way, finding the net with a trademark free-kick.

Alfredo Morelos' fine solo goal extended the lead and Rangers are 45 minutes away to a fine win.

Image source, SNS

Image source, SNS

A Blair Alston free-kick drifts over the Rangers crossbar and the home side retain their comfortable lead.

James Tavernier goes mighty close to his second of the game, the Rangers captain curling his free-kick over the wall and off the face of the crossbar.

Richard Foster is booked for a cynical trip after the former Rangers full-back is left behind by the pace of Ryan Kent.

That came after Drey Wright fired over the bar at the other end from the edge of the home penalty box.

Connor Goldson heads over the St Johnstone crossbar, but still only one goal separates the teams.

Alfredo Morelos slips the ball through to Ryan Kent, but St Johnstone goalkeeper Zander Clark does well to get down low and push it away.