Retired Eagles star Jason Kelce's Tesla Cybertruck bumper sticker takes jab at rival Cowboys

The rivalry between the Philadelphia Eagles and Dallas Cowboys dates back decades.

Jason Kelce, who spent his entire standout career with the Eagles, knows how intense games between the division foes tend to be. 

Although he announced his decision to retire from the NFL in April, Kelce's competitive spirit appears to be in midseason form.

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The seven-time Pro Bowl offensive lineman was spotted standing outside his Telsa Cybertruck...