AUD/USD down 0.1% in Asia, fails to recover ground after declining 0.6% Mon

Undermined by concerns over China's economy and sliding prices of metals

Copper hovers at 3-mth low, Dalian iron ore drops 2.6% to 3-mth low in Asia

AUD/JPY selling, weak CNY, China Monday rate cuts weigh on AUD sentiment

Focus turns to data and central bank rate expectations

U.S. advance Q2 GDP Thu, core PCE price index Fri key for Fed policy

Downside likely to be limited as RBA-Fed rate expectations diverge

Tuesday range 0.6633-0.6645; support 0.6630, 100-DMA at 0.6608

Resistance 0.6660-65, 0.6700-05

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