UK's Sainsbury's bottoms blue-chip index; Q2 like-for-like sales miss market view
** Shares in Sainsbury's SBRY.L down 3.3% at 348p, top loser on FTSE 100 .FTSE index
** British supermarket group logs 1.2% rise in Q2 like-for-like sales excluding fuel, missing analysts' consensus
** General merchandise and clothing sales down 2.9% in Q2
** Co, however, raises lower end of full-year profit outlook after posting a 3.6% rise in underlying operating profit for first half
** Up to last close, stock up ~11% so far this year
($1 = 0.7462 pounds)