Celtic enjoyed a comfortable 3-0 win over Greenock Morton earlier on Sunday as the Scottish Premiership leaders progressed to the semi-finals for a second straight year.
Speculation about the club's Norwegian manager Ronny Deila's future intensified after the 0-0 draw against Dundee in midweek cut their lead at the top of the Scottish Premiership to four points.
Despite a disgruntled Celtic support voting with their feet and Celtic Park a quarter full, Celtic were impressive in bludgeoning Mortoon as goals in the first-half from Leigh Griffiths, Gary Mackay-Steven and Callum McGregor set up a meeting with Rangers when the draw was made just before 5pm on Sunday.
Callum McGregor celebrates after scoring the third goal for Celtic
Image credit: Reuters
Mark Warburton's Rangers overwhelmed Dundee 4-0 at Ibrox on Saturday with Dundee United completing a 3-2 win at Ross County to progress.
Celtic last met Rangers in the Scottish Premiership four years ago before their fierce city rivals were liquidated and forced to begin life again in the Scottish Third Division.
Celtic were also 2-0 winners over Rangers in the Scottish League Cup semi-finals 13 months ago.
Celtic striker Leigh Griffiths will aim for another semi-final victory over Rangers
Image credit: PA Sport
Rangers should secure promotion back to Scotland's top divison holding a 12-point lead at the top of Scotland's second tier, the Scottish Championship.
Celtic are four points clear of Aberdeen at the summit of the Scottish Premiership with 10 matches remaining as they bid for a fifth straight title.
Rangers' Jason Holt (2nd R) celebrates scoring their second goal against Dundee with Kenny Miller.