CANADA STOCKS-TSX weighed by Ukraine tensions, bank shares

TORONTO, Aug 22 (Reuters) - Canada's main stock index slipped on Friday amid concerns about a further escalation of tensions in Ukraine, and as shares of financial and energy companies fell. The Toronto Stock Exchange's S&P/TSX composite index unofficially closed down 20.54 points, or 0.13 percent, at 15,535.55. (Reporting by Leah Schnurr, editing by G Crosse)