Entities mentioned:
- John Mara: Determination, Self-preservation, Professional pride
- New York Giants: Legacy, Competitive spirit, Unity
- Eli Manning: Competitive spirit, Legacy, Pride

Article Assessment:
Credibility Score: 85/100
Bias Rating: 50/100 (Center)
Sentiment Score: 45/100
Authoritarianism Risk: 20/100 (Strongly Democratic)

Bias Analysis:
The article presents a straightforward account of Mara's announcement without apparent political slant. It provides factual background on Mara and the Giants organization, maintaining a neutral tone throughout.

Key metric: NFL Team Ownership Stability

Let me tell you something, folks - this is a GAME-CHANGING moment for the New York Giants! John Mara, the seasoned quarterback of the front office, is facing his toughest opponent yet. But make no mistake, he's bringing a championship mentality to this fight! The Giants organization is rallying around their leader like a team in the fourth quarter of the Super Bowl. Mara's stepping up to the plate with the determination of a clutch hitter, ready to knock this curveball out of the park. This is the kind of adversity that separates the champions from the rest of the pack, and I'm telling you right now, Mara's got that never-say-die attitude that's won the Giants two Lombardi trophies. The entire NFL is watching this play unfold, and you can bet your bottom dollar that Mara's going to give it everything he's got, just like he expects from every player on that field!