The Philadelphia Eagles' No. 3 passing defense hinges on their elite cover corner Nnamdi Asomugha, but their shutdown defensive back's health is suddenly up in the air.

 

UPDATE: Sunday, Sept. 30 at 10:53 p.m. ET by Ian Hanford

Eagles Insider reported the news Eagles fans were dying to hear Sunday evening:

That's a major relief for the Eagles moving forward and as they try to beat the Giants Sunday night.

 

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UPDATE: Sunday, Sept. 30 at 10:30 p.m. ET by Tim Keeney

Eagles Insider is reporting that, contrary to previous reports, Asomugha hasn't been taken to the hospital quite yet:

We'll be sure to keep you updated on Asomugha's eye injury as more becomes known.

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UPDATE: Sunday, Sept. 30 at 10:23 p.m. ET by Ian Hanford

Eagles beat writer Bob Grotz tweeted regarding Asomugha's current situation:

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According to Eagles Insider, Nnamdi Asomugha sustained an eye injury against the New York Giants Sunday night:

 

The injury occurred in the second quarter, though it wasn't immediately apparent what his specific ailment was. Now that it's clear, it has to make Eagles fans a bit nervous.

Sight and vision in football, or anything for that matter, is crucial. If Asomugha took a serious shot, a minor injury could force him to miss some time.

That's not good news for the Eagles defense. He's normally lined up against the opposing team's top receiver, and he's a major reason that the Eagles were allowing just 172.7 yards per game through the air, entering Sunday night's game.

Philadelphia's defense relies heavily upon Asomugha and Dominique Rodgers-Cromartie, along with their dynamic pass-rushers up front.

Asomugha was receiving eye drops and participating in vision tests on the sideline in the second quarter before being taken back to the locker room. It appears that they want a better look at his right eye, leaving a second-half return open to possibility.

The Eagles may not need Asomugha's talents in Sunday night's defensive struggle, but they'll need him in the coming weeks. Philadelphia has Ben Roethlisberger and the Pittsburgh Steelers next in Week 5, and you can bet Pittsburgh will be ready to take advantage of his potential absence.

Keep an eye on this situation as more details come out.