Morelos has made the four-man nomination list for the Scottish Premiership Young Player of the Year prize.
Rangers' Alfredo Morelos, Aberdeen's Scott McKenna, and Saint Mirren's Lewis Morgan will be challenging the Hoops star for the award, and Celtic legend Kris Commons reckons Morelos could give Tierney tough competition.
The Colombian youth international has been in sensational form since arriving from HJK Helsinki last summer, banging in 14 Premiership goals in 32 appearances.
“If you had to vote on Christmas Day, he’d probably have got it," Commons said of Morelos on BBC Sportsound prior to the release of nominations list.
“His form was phenomenal. He’s a handful up front and he’s a tough-working, technically good player.
“And he’s certainly got an eye for goal."
Morelos has been routinely linked with an Ibrox exit to a bigger side due to his performances, and despite Rangers below-par campaign, he has been one of the best players in the land.
Meanwhile, Tierney has played an important role in Celtic's domestic dominance, and has weighed in with three league goals thus far.
The duo are the top two contenders for the prize, and they will go head to head again during Sunday's Old Firm clash.
Both are deserving of the prize given how important they have been thus far to their respective teams, and it should be a tight race between them during the voting process.