TORONTO, Aug 31 (Reuters) - Canada's main stock index opened
lower on Monday following last week's rally as energy stocks,
pinched by cheaper crude prices, led declines.
The Toronto Stock Exchange's S&P/TSX composite index
.GSPTSE was down 72.13 points, or 0.52 percent, at 13,792.94,
shortly after the open. Half of the index's 10 main groups were
in negative territory.