Mastercard holders will have the opportunity to win the referee's red and yellow cards as City face Borussia Dortmund in the Uefa Champions League.

Fans who wish to take part simply need to find a Mastercard host who will issue customers with a scratch card.

The winner will take home the official's cards from this crucial Champions League tie.

There are also a number of Mastercard goodie bags to get your hands on, so make sure you get involved!