The Celtic and Rangers pair have both enjoyed impressive campaigns, with the Ibrox star especially productive going forward.
Tierney recent displays, both domestically and in the Champions League, are said to have attracted interest from English sides Manchester United, Tottenham Hotspur and Arsenal.
And writing last month in his Daily Record column, Chris Sutton warned it could cost at least £30 million to prise the leftback away from his former club.
On the other half of Glasgow, Tavernier - a right back - has also been impressing, and currently trumps Tierney for attacking contributions in the league this season.
Both players have scored once in 10 starts, but with five assists to Tierney's one, the Rangers man is leading the way in that department.
And after Rangers supporting @YardleyLoyal posted the following tweet over the weekend, those of a Celtic persuasion have left him bombarded with replies.
"Tierney's worth £30mil!"— West Mids Loyal (@YardleyLoyal) 4 November 2017
Tierney: 10 starts in the league - 1 goal & 1 assist
Tavernier: 10 starts in the league - 1 goal & 5 assists pic.twitter.com/7XaPYnDTvI
Here's what they've been saying:
In reality Taverniers worth less than 2 mill. He's 1 of the worst defenders in Scotland. Realistically KTs worth more than your whole squad.— Simply [⭐] Celtic (@TheHoopsFan) 4 November 2017
so why was tierney was being scouted by a load of top clubs and tavernier wasn’t?— cole (@colemcc67) 4 November 2017
Tierney..also played 3 years in europe and at international level!— chris dolan (@topherd85) 4 November 2017
Clutching at straws here. Should you not be comparing defenders defensive stats rather than league assists.— ㅤGreig (@CRlNGY) 4 November 2017
This is embarrassing— Scott Dair (@Scott_Dair) 5 November 2017
Tavernier has been at fault for more goals for Celtic than Sevco have scored against us. The guy is tragic.— Hoidy (@Hoidy) 4 November 2017
Celtic have conceded 6 goals rangers have conceded more than double that so who's doing their job better absolute #zombie— kenny johnstone (@johnstone_kenny) 5 November 2017
Tierney’s playing at champions league level, tavernier couldn’t cope with the 4th best team in Luxembourg https://t.co/n00aTF4ka0— Mark1980 (@markybhoy1980) 4 November 2017
Tierney pocketed Arjen Robben Tavernier got exposed by a team of farmers from Luxembourg. Levels. https://t.co/1NamzyRxIj— Joe (@BoatsAndJoes_) 4 November 2017
At what price Rangers' James Tavernier be valued?