Jerseys, hats, chains, he has been collecting 49ers memorabilia for decades. But his prized possession is something no one else has.
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After an accident and cancer diagnosis, doctors told Peña he would lose his right eye.
When learning this, he had just one question for his doctor.
"I asked him, can I have a 49er eye, that's how die-hard faithful I am," Peña said.
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He is now aptly known as "the eye of the 49er."
Peña will be strutting his Niners-themed prosthetic at the Super Bowl in Las Vegas.
He says he's ready to watch his team make history.