U.S. sanctions will start targeting Iran's crude exports from November 4, and Washington is putting pressure on governments and companies globally to fall in line.
US President Donald Trump reimposes tough, unilateral sanctions against Iran after exiting 'horrible' nuclear deal
Iranians are already seeing the effects of the sanctions, with Iran's rial currency losing around half its value since Trump announced the US would withdraw from the 2015 nuclear accord.
President Donald Trump withdrew the US from the Iran nuclear deal in May to pursue a maximum pressure campaign against Tehran's atomic programme.
Nike announced they have been forbidden from providing football boots to Iran's squad during the tournament, on account of sanctions imposed against the country by the United States.