Former Rangers midfielder Derek McInnes is certain the Premiership champions will not lose to leaders Celtic in Sunday's blockbuster Old Firm derby.
But the Kilmarnock manager admits the path to victory is made more treacherous without talisman Alfredo Morelos' leading the way after his muscle injury.
McInnes expects Gio van Bronckhorst's whole squad to raise their game in the final weeks of the season in a bid to overhaul league leaders Celtic.
And he sees marquee January arrival Aaron Ramsey and Morelos' understudy Kemar Roofe as the two stars who can change the game if they step up at Ibrox.
Speaking in his Daily Mail column, he said: "Last month, I wrote that certain members of the Rangers squad needed to put their hands up and allow Van Bronckhorst to freshen things up. The time is now and the focus will be on Kemar Roofe and Aaron Ramsey in particular.
"Losing Morelos weakens Rangers in attack but they pay Roofe handsomely. He is there to be ready.
"Rangers have shelled out a lot of money both in wages and a hefty transfer fee to Anderlecht for a guy who has not been starting.
"I thought it was a really good signing at the time and you would have to say he has done okay.
"But he has been at Rangers for 18 months now and has never really won that fight with Morelos for the jersey.
"Steven Gerrard played them together at times with Roofe drifting from that narrow front three, but it never really convinced.
"There are two derbies to go and it's up to Rangers to derail Celtic expected him to do a bit more but I think he still has a capability to be the difference maker today.
"He is a good finisher and his all-round game is good. He just looks as if he maybe needs a good, injury-free run of games.
"He has had one or two wee fitness issues but has a visible confidence on the pitch and you would expect him to take his chances.
"Rangers will need that in the run-in because Morelos is such a big loss. He has always been available, he is a strong, squat, robust boy. He is not the most athletic but he is a handful and Rangers need to find a way to cope with his absence.
"Ramsey arrived on loan from Juventus in time to watch that last Old Firm game from the stand and he also needs to step up.
"Having scored in Rangers' last game at Dens Park and turned in an impressive performance for his country in the World Cup play-offs, he might just be finding his stride.
"Wales play a back five with a box in midfield and he plays in one of those high positions. He has always been one of the best counter-attacking midfielders around, making those trademark runs into the box.
"When he came in, he was clearly short of match practice, had a little calf knock and hasn't got going.
"We're at the business end of the season now and big players should be coming to the fore.
"Rangers could do with his influence and it feels like he has to play. If Ramsey gets anywhere near what he is capable of, he could be a major player today.
"I think he will play, while Ryan Kent is in a good place and Van Bronckhorst will hope to get a wee bit more out of Joe Aribo, too.
"Rangers need to sow that seed of doubt in Celtic, who have been going along so confidently that it's difficult to see them dropping points elsewhere in the run-in.
"There are two derbies to go and it's up to Rangers to derail them."
McInnes expects a game to remember and he believes Van Bronckhorst's side should hold no fear amid their rousing run to the last eight of the Europa League.
And he reckons Rangers can wash away the bitter taste that was left in the aftermath of their 3-0 trouncing at the hands of their fierce rivals in February.
He added: "If both teams reach their levels, we are in for a top match. And it might come down to the team that is more robust defending their box.
"Rangers have the experience of winning last year's title and will have taken confidence from their European exploits, swatting away some top teams along the any.
"Van Bronckhorst's squad is good enough to win a title but they have to go and demonstrate that.
"If they can deal with today's match then it is proper game on. They will finally start to feel better for that defeat at Celtic Park.
"I don't see Rangers losing it. But I'm not convinced they can win it without Morelos.
"There are two derbies to go and it's up to Rangers to derail Celtic."
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