Chelsea are reviewing their sponsorship arrangement with Parimatch Tech after discovering that the betting firm are one of two companies linked to owner Todd Boehly to be sanctioned by Ukrainian president Volodymyr Zelensky.
Sportsmail has learned that Parimatch and Sportradar AG are among 287 companies on a new sanctions list published by president Zelensky last Friday, with both banned from any economic or financial activity in Ukraine for the next 50 years.
Parimatch have a three-year sponsorship deal with Chelsea which sees their logo displayed on LED systems at Stamford Bridge, while Boehly is a shareholder in Sportradar after spending around £120million on shares 18 months ago.