It's heating up out there and Daniel Candeias, minutes after coming on as a substitute, is next to be booked for pulling down Jordan Jones.

That came seconds after Andy Halliday repaid Gary Dicker for the tackle that led to the Kilmarnock midfielder's yellow card.

Debutant goalkeeper Daniel Bachmann does well to block at his near post from Alfredo Morelos as the Rangers striker threatens.

There's been a few heavy challenges flying in and Kilmarnock's Gary Dicker earns the first yellow card for thumping into Andy Halliday.

Steven Thompson
Former Scotland striker on BBC Sportsound

Image source, SNS

Jamie Murphy is receiving lengthy treatment for what looks like a knee injury for the former Brighton winger as Daniel Candeias comes on in his place.

Murphy is eventually led away on a stretcher clutching his face in agony.

Paul Mitchell
BBC Sport Scotland

There is a man blocking the view of the assistant. In real time, it's almost impossible to be 100% sure it's a goal. If we want to avoid this, invest in VAR. If not, these things will happen. Easy to be wise with slow motion replays.

Rangers are down to 10 men as Jamie Murphy is left injured after a tangle of legs with Kirk Broadfoot.

Tam McManus
Former Hibernian striker and BBC Scotland pundit

Stephen O'Donnell looks to have set Kris Boyd clear behind the Rangers defence with a long ball, but the former Scotland striker is stopped in his tracks by an offside flag.

That was touch and go.

It's been a lively start as you would expect from a cup tie and it's Killie's turn to go close.

Chris Burke curls in a free-kick that looks like it might dip under the crossbar before goalkeeper Wes Foderinham turns it over the crossbar.

Steven Thompson
Former Scotland striker on BBC Sportsound

What a chance for Rangers. Debutant goalkeeper Daniel Bachmann fails to hold a Ryan Kent cross and Alfredo Morelos has the goal at his mercy.

Although the striker miscues his shot, Stephen O'Donnell clears in the nick of time.

TV pictures suggest that was mighty close to being over the line, but Morelos was the only one claiming.

Gordon Smith
Former SFA chief executive

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Killie make a promising start and, after James Tavernier pushes over Eamonn Brophy, Kris Boyd has a free-kick charged down as he looks to score against his former club.

The visitors fail to clear and Chris Burke's corner is cleared.

Boyd and Burke are two of three former Rangers players in the Killie line-up, the other being veteran defender Kirk Broadfoot.

Rangers kick off in their orange change strip and Killie in their traditional blue and white stripes...

Both sides go into today's tie at Rugby Park unbeaten over 90 minutes this season.

Rangers are on a run of eight games without a loss, while Kilie's run is six if you include the opening League Cup group game against St Mirren, who took the extra point available for the penalty shoot-out.

Steven Gerrard's side have, though, only won one of their four away games, with two of their three draws ending goalless.

Meanwhile, Kilmarnock have not lost a goal in open play in their three home outings.

Rangers will have to end that run to progress today without the penalty shoot-out that follows extra-time.

Rangers have not won in their last three visits to Rugby Park, with Steve Clarke's side getting the better of the Glasgow team twice in four meetings last season, including a 2-1 win the last time the Ibrox outfit were there in December.

However, Rangers came out on top the last time the sides met - 1-0 success at Ibrox in May.

Image source, SNS

Rugby Park is rocking as the two sides enter the arena...