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Polish javelin thrower Maria Andrejczyk has auctioned off her Tokyo Olympics silver medal for a great cause. The Olympian sold it for $125,000 to help an infant that needs life-saving heart surgery. Andrejczyk discovered a Facebook fundraiser for an eight-month old named Miloszek Malysa, who has a heart defect. The child's family was looking for financial assistance.

That's when Andrejczyk stepped in and decided to help the family.

"He already has a head start from Kubus – a boy who didn't make it in time but whose amazing parents decided to pass on the funds they collected. ... And in this way, I also want to help. It's for him that I am auctioning my Olympic silver medal," Andrejczyk said, as translated by ESPN.

Zabka, which is a Polish grocery store chain, won the auction with a lofty bid of $125,000, according to an announcement from Andrejczyk on Instagram. Andrejczyk added that the money will allow the eight-month old boy to receive the surgery he needs at Stanford University Medical Center.

Even though Zabka won the bid for the medal, they company ended up returning the medal back to Andrejczyk.

Andrejczyk's silver medal is brand new, as she won it at the 2020 Tokyo Olympics. The Polish javelin thrower missed out on a medal at the 2016 Olympics in Rio Janeiro by just two centimeters.