Flyers borrow underdog mantra, mask from Eagles to start new season
Why Philadelphia Eagles replaced their 'underdog' look with ski masks
Why Do Eagles Fans Wear Dog Masks? - Thrillist
Eagles' Clement a true underdog
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Philadelphia Eagles: Dog masks allowed at NFC Championship Game at
Eagles fans are snapping up creepy dog masks to support their
Embracing 'underdog' status, Philadelphia Eagles players wear dog
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Philly not showing any fear