The Russian ruble falls to a two-year low against the dollar, taking USD/RUB to a high of 66.7190, following U.S. sanctions in response to a nerve agent attack in the U.K. Danske Bank says USD/RUB could rise to 72.0 if sanctions become law and Russia retaliates. "Any major selloff of Russian local debt, local credit and stocks would amplify outflows from the RUB." EUR/RUB, which reached a near four-month high of 77.33 on Thursday, could rise to 83.50 in this scenario, it says.