Live sports broadcasting demands robust digital infrastructure to handle millions of viewers and milliseconds of latency. TelevisaUnivision faced this challenge during the 2026 FIFA World Cup, with Mexico as a host nation amplifying fan engagement. Brand reputation is directly tied to flawless, uninterrupted streaming of crucial moments. Technical execution, therefore, is paramount for maintaining customer trust and preventing subscriber loss. TelevisaUnivision partnered with Google Cloud, selecting its Media CDN due to its architecture and customer focus. Media CDN's distributed infrastructure features deep in-ISP edge caching and direct ISP peering to bypass network congestion. Dedicated capacity reservations ensured live traffic was isolated and could absorb peak surges. Migrating the session store to Memorystore for Valkey 9.0 achieved sub-millisecond response times for essential checks. Beyond technology, Google Cloud offered a joint co-engineering model with unified 24/7 war rooms and proactive monitoring. This collaboration resulted in 100% platform availability over 104 matches, delivering 675 million views. The partnership set a new benchmark for large-scale live streaming by combining localized edge delivery, fast compute, and joint operational efforts.