Barry Ferguson reckons Celtic will go unbeaten for the rest of the season, but Rangers will come out on top in the title race.
The Light Blues are 19 points clear of their rivals at the half-way stage after their 1-0 win on derby day, although the Parkhead side have three games in hand.
Celtic were the better of the two sides last weekend, but couldn't make their dominance count as Nir Bitton's sending off turned the game on its head, before a Callum McGregor own goal sealed the victory for the home side.
But Ibrox legend Ferguson reckons the visitors will be full of confidence after their performance against Rangers and believes Neil Lennon has finally found a formula that works for his side.
He doesn't think Celtic will drop any more points the rest of the way, but has tipped his former side to come out on top if they can get through January without any hiccups.
He told Go Radio: "If Rangers can come through this month of January unscathed I think they will be in poll position to get the title.
"On the other hand, I don't think Celtic will drop any more points. I do. I honestly think they will have got so much confidence from that performance (against Rangers) with the new players coming in and a new formation.
"He's found a new formula that looks very good on the eye. I think that's the best I have seen Celtic play.
"It's up to the manager and the experienced guys there to say 'we can compete and put one over on Rangers in terms of performance' and you seen that in the first 60 minutes.
"The only thing that Celtic couldn't do and that was down to one guy, Allan McGregor who made some fantastic saves.
"The ball is in Rangers court, of course it is, but this is a massive month and it's not something Rangers have been used to."
