SA fight back to open door against NSW

Travis Head hasn't reached 10 runs in four consecutive Shield innings, out for eight against NSW. (Matt Turner/AAP PHOTOS) (AAP)

South Australia have pried the door open for a potential Sheffield Shield comeback against NSW, claiming three late wickets before stumps on day three to keep all results alive.

Struggling to avoid the follow-on at one stage when they slumped to 8-229 in reply to NSW's 5(dec)-389, the Redbacks managed to scramble their way to 311.