SUBSTITUTIONpublished at 72 mins
Rangers 2-0 Kilmarnock
Steven Davis is stripped and ready for action for Rangers. He replaces Scott Arfield, who has put in a great shift in centre midfield and gets a standing ovation for his efforts.
Morelos scores four, and Halliday gets the other, as Rangers thrash Kilmarnock to set up quarter-final at Aberdeen
Kilmarnock reduced to 10 when Bachmann was sent off for catching Kamara with elbow
Thomas Duncan
Rangers 2-0 Kilmarnock
Steven Davis is stripped and ready for action for Rangers. He replaces Scott Arfield, who has put in a great shift in centre midfield and gets a standing ovation for his efforts.
Rangers 2-0 Kilmarnock
A tired challenge from Alan Power gets Rangers a free kick on the edge of the box. Borna Barisic finds Joe Worrall, but the defender's header is off target.
Rangers 2-0 Kilmarnock
Gordon Smith
Former SFA chief executive on Sportsound
Quote MessageKillie started the second half very lively. Now they look tired and they're being dominated too. I just hope they keep playing at this level even with a man short.
Rangers 2-0 Kilmarnock
Ten-man Kilmarnock are struggling to contain Rangers now. Alfredo Morelos charges down the left and cuts the ball back looking for Scott Arfield, but it slips away from the midfielder who would have had a tap in.
Rangers 2-0 Kilmarnock
Another chance for a hat-trick for Alfredo Morelos. Glen Kamara's ball through is cut out by Greg Taylor, but the Kilmarnock full-back is bullied off the ball by Morelos, who fires a shot into the side netting. Kilmarnock goalkeeper Jamie MacDonald may just have got a touch on that. It's a goal kick though.
Rangers 2-0 Kilmarnock
Alfredo Morelos just never gives defenders peace. He hassles Gary Dicker inside the Kilmarnock box and looks to have knicked the ball, but a foul is given. The Colombian then latches on to yet another Daniel Candeias cross but he fluffs his lines.
Rangers 2-0 Kilmarnock
On-loan Liverpool winger Ryan Kent whips a shot just past the post after Ryan Jack laid it off to him on the edge of the area. So unlucky.
Rangers 2-0 Kilmarnock
Glen Kamara is having an assured game in the Rangers midfield. He moves it forward, and a cross comes in towards Alfredo Morelos, but it's slightly behind the Colombian and Kilmarnock clear.
Rangers 2-0 Kilmarnock
Gordon Smith
Former SFA chief executive on Sportsound
Quote MessageGive them credit, Kilmarnock are pushing forward and are trying to get something from the game.
Rangers 2-0 Kilmarnock
Connor Goldson again gets his head to a Kilmarnock corrner. The visitors have started brightly and won't go down without a fight it seems.
Rangers 2-0 Kilmarnock
An early foray forward for Kilmarnock results in a corner. But Connor Goldson heads it away for Rangers. They'll need better quality than that if they're to get back into this Kilmarnock.
Rangers 2-0 Kilmarnock
And we're off!
HT: Rangers 2-0 Kilmarnock
The Kilmarnock players are back out early for the second half. Can they mount the mother of all comebacks at Ibrox with 10 men? Stick with us for the second half.
BBC One Scotland (00:45 GMT)
Jonathan Sutherland
BBC Sport Scotland
An eventful week! On a bit late, but definitely worth it.
Join us later for Scottish Cup highlights or watch on the iPlayer over breakfast.
HT: Rangers 2-0 Kilmarnock
Neil McCann
Former Rangers winger on BBC Sportsound
Quote MessageTaking away the controversy, Rangers have scored two very good goals. Rangers have controlled the match. Both times you're looking for good deliveries as a striker. The first is a slide-rule pass and the other is just an excellent cross from Daniel Candeias.
HT: Rangers 2-0 Kilmarnock
Gordon Smith
Former SFA chief executive on Sportsound
Quote MessageIt's not a fleeting brush of the arm from Joe Worrall. Although there doesn't look as though there's an absolute arm-bar grab, there's enough pressure that he is holding him back. Therefore, I think Eamonn Brophy is well entitled to go down and it should have been a penalty.
HT: Rangers 2-0 Kilmarnock
Neil McCann
Former Rangers winger on BBC Sportsound
Quote MessageThe keeper [Daniel Bachmann] doesn't throw his arm for me, that's why I believe it's not a red card. I think he does just give him a little brush with the elbow and it does strike Glen Kamara in the face. But it's not enough for a red card.
HT: Rangers 2-0 Kilmarnock
Well, that was an eventful 45 minutes. Alfredo Morelos finished twice from close range after brilliant crosses from Daniel Candeias to put Rangers in cruise control.
In between those goals Kilmarnock had goalkeeper Daniel Bachmann sent off for an elbow on Glen Kamara. Pretty much nothing has gone right for the visitors, who need a miracle to go through now.
Rangers 2-0 Kilmarnock
Neil McCann
Former Rangers winger on BBC Sportsound
Quote MessageGary Dicker, not being a natural centre-back, is totally focused on the ball. At no time is he opening up his shoulder to see where Alfredo Morelos is. What a delivery - this is gift-wrapped. What way do you want the Mitre sign sitting up for you? Two goals for Morelos inside two yards.