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

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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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Former NFL player Jason Kelce waves to fans at the 18th hole at the 2024 American Century Championship at Edgewood Tahoe Golf Course July 14, 2024, in Stateline, Nev. (Isaiah Vazquez/Getty Images)

The seven-time Pro Bowl offensive lineman was spotted standing outside his Telsa Cybertruck in a video posted to social media that showed Kelce pointing to a bumper sticker on the back of the battery-powered vehicle.

The sticker depicted a cartoon likeness of Benjamin Franklin urinating on the Cowboys' logo. 

Jason Kelce of the Philadelphia Eagles on the bench during the fourth quarter of an NFL wild-card playoff football game against the Tampa Bay Buccaneers at Raymond James Stadium Jan. 15, 2024, in Tampa, Fla. (Kevin Sabitus/Getty Images)

The sticker appeared to be a take on "Calvin and Hobbes," a comic strip that launched in 1985 and concluded in 1995.

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Other versions of the decal feature the character "Calvin" urinating on sports logos or other symbols.

Jason Kelce (62) of the Philadelphia Eagles directs his team during the first half of a game against the New York Giants at MetLife Stadium Jan. 7, 2024. in East Rutherford, N.J. (Al Bello/Getty Images)

Kelce was