Gavin Rupp dies on Tuesday after cancer battle

WASHINGTON (WJLA) - A 13-year-old cancer patient who was dubbed a “hero” by the Washington Nationals’ Bryce Harper died this week after a three-year battle with brain cancer. He was 13.

The Washington Post reports that Gavin Rupp died on Tuesday. In June, doctors told Gavin that inoperable cancer had returned to his brain.

Earlier this month, Gavin threw out the first pitch Nationals Park. The Post reports that Rupp’s father warned him not to throw the pitch from the mound because he might not have the strength.

But Rupp took a chance and threw the first pitch from the mound. The Post reports that landed it in Harper’s mitt.

“It was a day that kind of changed the rest of his days. All of a sudden he went from being very sad that we couldn't do anything else the cancer to forgetting about that and having an incredible day,” said his father Chris Rupp.

After learning of his passing, Harper tweeted this out:

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I will be playing for this young man! Gavin is my hero and he was such a warrior! #CANCERSUCKS

— Bryce Harper (@Bharper3407) July 31, 2013

Bryce Harper and the Nationals were introduced to Gavin through an organization called Kyles Kamp, who's goal is to raise money for the care and treatment of pediatric cancer patients at Children's National Medical Center.

Last May at a benefit little league game put on by Kyles Kamp at Nats Park, Gavin played had two hits, three stolen bases and pitched a scoreless inning.

On Wednesday, the Nationals released a statement saying, "We hope the Rupp family finds comfort in the many happy memories they had with Gavin, including his time at Nationals Park where he became an inspiration to us all.”