Ben Baltz, 11, recently competed in a triathalon with a prosthetic leg. He completed the 150-yard swim and three-mile bike ride in the Sea Turtle Tri on Pensacola Beach, Florida.
However, a half-mile into the running part of the event, his prosthetic leg came loose and he went down, reports Panama City's News Herald.
Moments later, Pfc. Matthew Morgan, a Marine who had volunteered to help at the event, stepped in.
Baltz told the News Herald:" He said 'You need help?’ and I said, ‘Sure,’ and he picked me up and carried me."
Pfc. Morgan carried Ben for half a mile on his back. As they reached the end of the race, the crowd started cheering.
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While Baltz was grateful for the help, but was embarrassed that he couldn’t complete the run on his own.
In 2009, Baltz's leg was removed because he had a type of bone cancer called 'osteosarcoma.'
Baltz's mother said: “He has no idea what the big deal is. He honestly does not. He thinks it’s the Marine."