Solid South Australia declare in deficit
Queensland 8 for 443 dec and 2 for 128 (Burns 88*) lead South Australia 4 for 368 dec (Ferguson 100*, McDonald 86, Cooper 75, Head 52, Floros 4-85) by 203 runs
A sporting declaration by South Australia's captain Johan Botha against Queensland has opened up the possibility of an outright result on the final day of the Sheffield Shield match at Adelaide Oval.
The Redbacks were cruising at 4 for 368 when Botha called in Callum Ferguson on an even 100, leaving the Bulls with time to set a fourth-innings chase for their hosts.
Ferguson enjoyed fruitful stands with Tom Cooper and Travis Head before reaching three figures, while the off spinner Jason Floros was Queensland's only wicket-taker.
First innings hat-trick taker Chadd Sayers grabbed another two early wickets when the Bulls batted again, but Joe Burns and Peter Forrest settled the innings down and will be chasing quick runs when play resumes on day four.