0927 ET - The Bank of Canada next week is likely to acknowledge the strength in the economy prior to the rise in economic tensions between the U.S. and Canada -- but that will mean little given fresh layer of uncertainty now hovering over the country's businesses, says Karl Schamotta, chief market strategist at global-payments firm Corpay. Canada GDP rose 3.3% annualized in 2Q, or well above the BOC's 2.5% forecast. In the past week, though, the U.S. has imposed a 50% tariff on certain Canadian imports, and Canada has responded with retaliatory tariffs of their own. Schamotta says the Canadian dollar is trading flat following the 2Q performance, and the currency remains vulnerable "to a dovish repricing of the BOC's policy trajectory." BOC issues its next decision this coming Wednesday.