Andy Halliday has questioned the decision to award Celtic their ninth successive title.
The midfielder, who recently left Rangers, said he struggles to understand how a champion could be named without the season having been completed.
Celtic held a 13-point gap over their rivals at the top of the Premiership before the shutdown.
Speaking on talkSPORT, Halliday said: "I do think Celtic were the favourites going into the remainder of the season, but if you can't finish the season then I'm not sure how you can award anyone any type of title when it's not mathematically possible for anyone else to win the league.
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"And, touching on it again, in terms of other teams getting relegated through the same scenario.
"So, there's definitely an asterik (sic) over it, from myself's point of view, but the SFA have already made that decision really early for everyone so there's nothing we can say now it's over."
Speaking to PLZ Soccer last week, Halliday said: "Celtic were the favourites but as players we’re always going to think we can claw it back taking it a game at a time and try beat them.
"Going into two Old Firm games, both of them being must-wins but obviously it got taken out of anyone’s hands by the SPFL making the decision for everyone so it’s all guns blazing for Rangers going into next year now."
