Broncos are UNDERDOGS vs the undefeated 49ers. Here are 5 keys to an upset: 5️⃣ keys to an upset: 1️⃣ START FAST 💨 2️⃣ PRESSURE BROCK PURDY 3️⃣ STOP THE RUN 🛑 4️⃣ WIN THE TURNOVER BATTLE 5️⃣ PROTECT THE FOOTBALL 🏈 📍 Broncos @ 49ers, Levi’s Stadium #denverbroncos #niners #nfl #bonix #brockpurdy