Brendan Rodgers is sending subtle Celtic signal as Rangers boss Philippe Clement frays around the edges – Keith Jackson

Let's be honest, there was an unfortunate touch of the Charlie Nicholas vs Jeff Stelling ‘You should go to Specsavers also’ about it.

But when Philippe Clement bit down on the bait dangled for him by Brendan Rodgers on Sunday, it provided a fascinating insight into the mindset of the two managers who are about to engage in a winner-takes-all derby double. One of these men will wrap a hand around the Premiership trophy this weekend when Rangers arrive at Celtic Park for a potential title decider.

Victory for either might not be enough to actually seal the deal but it will guarantee that the momentum is claimed by one of them with only two more rounds of league fixtures remaining. With so much about to go on the line – and a Scottish Cup Final showdown still to come at the end of the month – both men will be feeling the pressure squeezing hard on their shoulders.

They’re just adopting different ways of dealing with it. Because, although this absorbing head-to-head has the potential to become very complicated from here on in, the arithmetic behind it remains simple enough to understand. A share of the spoils on Saturday lunchtime would be enough to keep Rodgers in pole position just yards out from the finishing line, three points ahead and five goals better off into the bargain.

And those numbers will be one reason why the Irishman feels relaxed enough to refer to the final Old Firm tussle of what has been, to this point, a tumultuous top flight campaign as a “bit of fun”. Clement came across as being strangely prickly when he made a point of responding to Rodgers’ words without the need for any prompting following his own side’s 4-1 win over Kilmarnock 24 hours later.

The Belgian went on to insist his counterpart was