Tasmania 94 for 1 trail South Australia 307 (Lehmann 115, Manenti 71, Bell 3-78) by 213 runs

South Australia were in morning trouble at Karen Rolton Oval on Tuesday after losing 4 for 19 in a horror nine-over stretch.

Openers Kelvin Smith and Henry Hunt put on 30 runs at a healthy clip before the tumble. Smith was superbly caught, high to his left, by first-class debutant Mitchell Owen at third slip.

Hunt feathered a glove to a leg-side short ball and the 22-year-old medium-pacer Owen, in his next over, bowled Nathan McSweeney, the Redback chopping on attempting an off-side leave.

The pair smacked 59 runs from seven overs - Fraser-McGurk's 37 from 23 balls featured two sixes and five fours before skying to mid-on from spinner Jarrod Freeman before lunch.

Lehmann posted his half-century during a brisk seventh-wicket stand with the aggressive Manenti, who followed suit in reaching his milestone from 45 balls.

The pair put on 104 for the seventh wicket with Manenti's rapid-fire 60-ball knock including 11 fours and two sixes.

Lehmann, with valuable tail-end support from Wes Agar and Brendan Doggett, continued to his 10th first-class ton - his 143-ball gem included 18 fours - and his second in consecutive Shield matches having finished last season with a century against New South Wales.