• EUR/USD sank 1.1660 to 1.1577 after comments from Fed's Warsh on Aug 28

• Pair edges lower to 1.1574 on Sep 2 toward 100-DMA at 1.1567

• Pair should revisit Aug 13 low at 1.1512 if it falls below 1.1555

• Traders short euros covered $3bln of $8.5 short position in week to Aug 28

• Remaining $5.5 billion short will restrain EUR/USD downside

• There is room for a drop toward 1.1491 base 20-day Bollingers

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(Jeremy Boulton is a Reuters market analyst. The views expressed are his own)