Recent matchwinner Sean Harris will not play for the Greater Northern Raiders on Saturday in a surprise move.
But coach Andrew Gower instead turns to 15-year-old sensation Cooper Anthes to make a shock debut against South Hobart-Sandy Bay.
The Riverside High grade 9 student was starring in third grade for the Blues last season until the offspinner made the credentialed leap into the top flight this summer.
"We've been looking for an opportunity to bring him in and there's no better time than this week with Riverside having the bye," Gower said.
The Tasmanian under-15 captain returns on Friday from a starring campaign at the national championships on the Sunshine Coast.
Harris will play for South Launceston just a week after hitting a magical 173 off 146 balls in a five-wicket victory against North Hobart.
Gower said the Greater Northern side wanted to be mindful of their grassroots clubs heading towards finals.
"We've lost our top three batters. Other than that, we're looking pretty good," he said after the loss of not only Harris, but also Alistair Taylor and Anish Paraam.
"Harry's just been helping us out, filling in when he can and they have a big game this weekend against Westbury.
"The communication I have with the clubs and the players is to what their availability is. He's keen to get back to South this week, but that's not to say he won't play the last round for us as well."
Paraam will fulfill club obligations with Devonport after nearly a month since he last played for the Orions while Taylor has been forced to keep for Launceston.
The moves allows Latrobe gloveman Rhys French and Riverside quick and coach Lyndon Stubbs to also debut.
Spinner Alex Kerrison is also recalled for Westbury teammate Liam Ryan.
Sharks swing bowler Gabe Bell is not expected to play at Invermay Park to rest after his Futures League match.
But George Bailey and Ben Dunk's availability could depend on the outcome of their BBL semi-final meeting.
"Dunk took the sword to us [last October], but that's a long way back," Gower said.
"But we go in very positive this week after what has transpired last week."