Business of sports is a dynamic, multi-layered ecosystem where teams, leagues, sponsors, broadcasters, advertisers, and digital platforms converge to create value for fans and sustainable revenue for organizations, a complexity accelerated by shifting sponsorship models, digital platforms, and evolving fan expectations that demand more personalized, immersive experiences, and the ecosystem also depends on regulation, sponsorship disclosures, and ethical considerations that influence sponsorship risk, brand safety, and the alignment of corporate citizenship with fan values.Within this ecosystem, sports sponsorships act as an engine that powers visibility, fan engagement, and experiential campaigns, while sports marketing shapes storytelling and brand alignment around competitions and communities, influencing budget allocations and partnership structures, and these dynamics also influence talent development, venue strategy, and regional collaborations that require long-term thinking.