Oz to make late call on duo

Durban - Captain Michael Clarke says Australia will make a final call on injury doubts Shane Watson and Shaun Marsh on Friday morning, hours ahead of the deciding one-day international against South Africa at Kingsmead.

Allrounder Watson and Marsh both batted in the nets on Thursday, but Watson hasn't bowled since back spasms forced him out of Australia's attack after just 3.5 overs in the second ODI.

Clarke said on Thursday, "they both pulled up pretty well from Wednesday's training and we had a pretty tough session, so that's a positive sign for us."

The skipper added Watson would bowl later on Thursday "to make sure he's ticked that box."

South Africa wicketkeeper Mark Boucher is also expected to make the series-decider after hurting a finger at net practice.