News4JAGs: Victory Monday! Jaguars show they're legit with win at San Francisco

The Jaguars won for the first time in San Francisco in Week 4. Their defense is perhaps the league's best. Are the Jaguars for real or is their 3-1 start for head coach Liam Coen a mirage? Jamal St. Cyr and Justin Barney break things thing as a "Monday Night Football" game against the Chiefs comes up next.