The pundit has been left impressed by Rangers after their latest Ibrox victory.
When the Hoops won 2-0 at Ibrox, Steven Gerrard's side were facing enormous pressure. The expectations of fans had taken a significant dent.
Since then though they've won every domestic match, with their only defeat coming late against Young Boys in Switzerland last Thursday.
It's form that has seen them leapfrog Neil Lennon's team, sparking suggestions there's a legitimate title race in the Scottish top-flight this season.
Walker certainly thinks that's true, believing that this year it's going to go all the way to wire next May.
As quoted by Sky Sports, he said: "I think you have to admire Rangers and the way they have responded. Aside from the [Europa League] defeat against Young Boys, their response has been terrific.
"I don't think we're going to see many points given up by Celtic and Rangers. Admittedly, Celtic have followed up a draw with a defeat. I think they're going to prove to be really debilitating in their quest for the title."
"The response since losing to Celtic has been absolutely first class. And, make no doubt, the title race is going right to the end of the season."
Rangers dealing with double duties better
Under Steven Gerrard, the Gers have shown real resilience in the wake of European fixtures.
Last season they didn't drop points in any of their games after UEFA Europa League group stage matches. That's a trend that's extended into this season.
Neil Lennon chose to make just one change after beating Cluj last Thursday and it looks to have cost his side. They were notably unable to cope with the physicality and energy of Livingston on Sunday. Lennon needs to show he can use his squad better.
Having dropped points in their last two fixtures, the onus is now on the reigning champions to show a similar determination to what Rangers demonstrated in the wake of September's derby.
Which team navigates the upcoming schedule of matches across three competitions best will head into 2020 as title favourites.
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