Talking points as Celtic face Old Firm foes Rangers in Scottish Cup semi-final
Preparations have been markedly different for both sides and there are lots of subplots around the game.
Celtic take on Old Firm rivals Rangers in a Scottish Cup semi-final at Hampden Park on Sunday.
Here, the PA news agency looks at the main talking points ahead of another keenly awaited derby clash.
Fatigue factor
Fifty-fifty fans
Kyogo to start?
Implications of winning and losing
What does the form say?
Rangers were boosted on Thursday when they beat Braga to secure a the Europa League semi-final tie against RB Leipzig. The 3-1 win after extra-time followed a 4-0 win at St Mirren last Sunday. However, the 2-1 defeat by Celtic at Ibrox the week before that is still fresh on the minds of Rangers players and fans. The Hoops have not lost a domestic game since going down at Livingston last September and are looking unstoppable, evidenced by their mauling of St Johnstone last Saturday.