The way the top of the Premiership is starting to shape up, the chasing pack behind Celtic look to be needing snookers already.

The champions take on their closest challengers, Aberdeen, at Pittodrie tomorrow night with the advantage of a four-point cushion and the luxury of a game in hand over the Dons.

So, it could be argued that even should Celtic take their foot off the gas in the northeast tomorrow evening, or have a collective off-night, they could well afford it. Unsurprisingly though, their manager Brendan Rodgers is having none of that, imploring his men not to let up, and to put their foot to the throat of their rivals.

The Celtic manager is enjoying watching his team, and indeed, his squad, flex their muscles on the domestic stage at present, but he is adamant there is still plenty of room for improvement.

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When asked if his men should be striving to become even better than they are showing themselves to be at present, Rodgers said: “Always, yes.

“Because you always have to, I think, at every moment you can.

“I never say complacency, but contentment is something that you don't want to have. You don't want to be content, you don't want to be happy. You always have to be improving and developing and that's something that we as a club want to be able to do.

“I think we've been able to, in the last couple of winters, really energise the squad and bring it to a level that allows us to work at how we're working at the moment. But like I say, we always have to look beyond that and look to the future.”

The near future offers Rodgers a chance to do just that, and to further bolster what is already a pretty formidable-looking squad in the January transfer window.

“I think we'll definitely look,” he said.

“There are still areas that I would like to improve in the squad. Absolutely no question about that.

“We can't do everything in the summer one. We've done a lot of great work in there. But there's definitely one or two areas just to, again, give that freshness to the squad as well. And give that quality.

"So, it's important that we keep building. Like I said, it's contentment. All the players will learn, develop, they'll get better.

“But you need to always provide competition and that's something I'll always look at.”