What was Celtic boss Martin O'Neill thinking with his selection of Sam Johnstone for the Old Firm?
First and foremost, let's be clear that this is not an attack on Johnstone himself. The veteran keeper has plenty of quality and plenty of experience, but he has barely played in recent times - there is no getting around that.
Johnstone was given the chance to impress during the week, against St Johnstone, and he made a single big save, with little else to do. But anyone who looked closely, will have noticed his rusty-looking distribution.
The former England international rushed into long balls and often saw them intercepted, and he didn't show any ability to play difficult short passes under a press, with St Johnstone not pressing in those situations.
Other than a good save, there was no evidence that Johnstone should start the massive Old Firm game on Sunday over Viljami Sinisalo, who has been reliable, in-form and in-rhythm all season.
Sinisalo handled big games and big situations at the end of last season, and while there have been one or two stray passes, he has largely done well to pass into the midfield even under a press.
So, why start Johnstone? Can it really be big-game experience? With all due respect, the 33-year-old's biggest derbies were the Black Country derbies in the Midlands. He hasn't got a career record of playing in massive games, and granted, neither has Sinisalo, but he did play in some big occasions at the end of last season, with the title on the line.
Rangers looked delighted that Johnstone was selected. From the first whistle, they pressed him, made it difficult to play the ball out from the back and forced the experienced keeper into a number of mistakes.
He almost gave a goal away in the first few minutes, and while he came flapping for a cross and missed it. There were some good finishes for the goals, so there is no blame for those, but Johnstone set a bad tone for his side by giving the ball away too often and not finding the right passes.
Johnstone is not to blame, either. He will get better, and he may get further chances, but he is rusty and Old Firms are not the games to shake off rust.
This is on O'Neill for making a poor decision that can be based on nothing more than the reputation of the two goalkeepers.
