SYDNEY - Shane Watson would be honoured to stand in for Michael Clarke as Test skipper against India next month even if he thinks it's increasingly unlikely that Australia will need a caretaker captain. Australia are sweating on Clarke's hamstring injury ahead of an important three months of cricket on home soil. All rounder Watson, who has had more than a few injury problems of his own in recent years, said he had spoken to Clarke and the prognosis for the injury was improving. "The diagnosis is, I think, better than what it was initially, which is a great thing. It's all very positive."