Image source: https://unsplash.com/photos/dKCKiC0BQtU  Football is one of the most popular sports in the world, and it has seen some of the biggest shirt sponsorship deals ever. From global brands such as Nike to more regional sponsorships, these deals have become an increasingly important part of a team's revenue stream. With online casinos in Australia becoming more prominent as well, we are seeing new opportunities for teams to benefit from this form of marketing. If you want to find an online…