South Australia have given themselves an outside chance of the win they need to keep their Sheffield Shield hopes alive, after a wicket-fest in the middle session at Bellerive Oval.
The home side, having lost 6-17 at one stage, limped their way to 7-126 at tea on Wednesday's third day.
Despite their second-innings' batting woes, the Tigers lead by 292 runs after bowling out the Redbacks for 227 earlier in the day.
Looking for a win to stay in second spot on the Shield table, Tasmania seemed in cruise control at 1-81 with Jordan Silk posting a confident half-century.
However, Joe Mennie (2-21) bowled the opener for 53 to begin the rot, as the Tigers' go-to pair of captain George Bailey and wicketkeeper Matthew Wade both fell for ducks.
Opening bowler Daniel Worrall starred with the ball for the Redbacks, securing 3-17 off 12 tight overs.
Australian Associated Press