Celtic travel across Glasgow to Ibrox on Sunday to face Rangers.
Celtic icon John Collins has told Sky Sports that he believes Rangers need to win Sunday's Old Firm derby at Ibrox for the good of Scottish football, in a match that could prove crucial at the top of the Scottish Premiership.
Brendan Rodgers' depleted side travel to Ibrox to face the Light Blues, with the Hoops currently six points ahead of Rangers and boasting a game in hand after their clash against Dundee last week was postponed.
However, the Gers are on an incredible run of form under manager Graeme Murty, winning nine out of their last 10 outings in both league and cup.
With the Gers going into Sunday's Old Firm derby in confident fashion, Collins suggested the Gers need to beat his old side to make Scottish football competitive once again and finally question the Hoops' crown.
"Rangers have certainly made progress in the last few months. He’s brought his new signings in at Christmas, winning games, scoring goals, Celtic have dropped their standards from last year, both offensively and defensively," Collins said.
"In the big games, Celtic usually produce. You want a competitive league, you want two or three teams fighting at the top of the league. Celtic have had it too easy for too long.
"For the good of Scottish football, we need a competitive league. Celtic are not at their best, but I think they are still the favourites for the match."
Celtic are suffering a number of injury problems are likely to be without mainstays such as Craig Gordon, Dedryck Boyata, Stuart Armstrong, Paddy Roberts and Leigh Griffiths, while Mikael Lustig is suspended.
Rangers have also suffered an injury blow this week, with January signing Russ Martin a doubt for Sunday's match. He could join Graham Dorrans and Ryan Jack on the sidelines.
A win for Celtic will almost certainly end the Gers' chances of toppling Celtic at the top of the table.