Nobody had more fun at the Philadelphia Eagles home opener than Jason Kelce, who was on hand for his new gig with ESPN's Monday Night Countdown. But unfortunately, one notorious Philly superfan inadvertently injured himself while joining in on the merriment.

Kirk Cousins and the Eagles' defense spoiled a love fest in South Philly for Jason Kelce on "Monday Night Football."

Former Philadelphia Eagles center Jason Kelce announced his retirement from the NFL in March after 13 seasons with the franchise. However, he remains closely tied to football, as ESPN tapped Kelce to join the cast of "Monday Night Countdown" as an analyst.

Jason Kelce was all over South Philly on Monday night, but had already left the broadcast booth before he got a chance to weigh in on the Eagles' collapse.

Budding media superstar Jason Kelce paid an extended visit to the Monday Night Football booth during last night's Falcons-Eagles game.

This is about whoever made the decisions for last night’s Falcons-Eagles game on ESPN. Let me repeat this because Kelce is one of those people who if you ever say anything negative about him, the mob will come after you in a big way: This is not about Kelce,