Australia have announced two changes for the remaining matches of the Chappell-Hadlee Series, but New Zealand's final squad for Tuesday's match in Adelaide will not be known until results of Brendon McCullum's shoulder scans have been received.

McCullum was struck by a rearing Kyle Mills delivery while standing up to the stumps in the early stages of Sunday's third one-day international in Sydney, and required pain-killing injections to complete the game. Gareth Hopkins will be flown in as wicketkeeping cover while McCullum undergoes scans in Adelaide on Monday.

"Early on [McCullum] wasn't going to bat and all of a sudden he appeared from nowhere with his pads on," said Daniel Vettori, the New Zealand captain. "To be able to hit the ball as cleanly as he did he's probably not too bad. He's having scans tomorrow. We hope for the best."

Australia, meanwhile, have dropped the rookie New South Wales batsman David Warner and the replacement fast bowler Ryan Harris for this week's matches in Adelaide and Brisbane. Warner, who has struggled for consistency in his debut international series, lost his place to Ricky Ponting, who returned from a one-match break, while Harris will make way for the Victorian fast bowler Peter Siddle.

Warner scored just 106 runs at 17.66 in matches against South Africa and New Zealand this summer, and will now return to NSW, where he has yet to make his first-class debut.

"He was picked in our one-day squad on the back of a couple of unbelievable innings for NSW in Ford Ranger Cup cricket and that magnificent 80-off he made in the Twenty20 game in Melbourne," said Ponting. "We saw how much talent he's got and how dangerous he can be. I've got no doubt that was the reason he was picked. But it's a totally different kettle of fish playing against very high class international teams than what it is playing state cricket.

"David's got the talent there. he just needs to go back to NSW now and work out the style of game that's going to work for him at the next level. It's invaluable experience that he would have gained the last couple of weeks being around the Australian team, so he's got some things to work on and hopefully he'll go away and do that."

Ponting was hopeful Australia's 32-run victory would imbue his side with confidence as they look to level the best-of-five series in Adelaide on Tuesday. "I guess there is a little bit of relief and a little bit of joy that some of the hard work we've been putting in is finally coming through in our performance," he said. "There is some room for improvement. By no means is this a great performance.

"We can't afford to get carried away with one win. It's just good for the guys to get that winning feeling back around the dressing room again. We'll have a bit more of a spring in our step for our travel day tomorrow."