SYDNEY:- Australia opener Shaun Marsh is in doubt for next month's first Test against South Africa with a hamstring injury suffered in a domestic cup match this weekend. Marsh, who missed Australia's ODI tour of South Africa with a broken finger, was inconvenienced during his innings of 70 against Tasmania. WA Cricket described Marsh's injury as a "low grade tear". "Marsh will return to Perth where he will undergo rehabilitation with a view to being available for selection for the opening Test of the three-match series against South Africa," WA Cricket said.–AFP