BOSTON (CBS) – Nine-year-old Liam has run the bases several times at Fenway Park. But his most recent trip around the diamond had extra meaning.

Liam’s father, Jeff Mcgourty, shared a video on Facebook this week showing the young Red Sox fan circling the bases at the iconic ballpark.

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Mcgourty posted that Liam suffers from Duchenne Muscular Dystrophy, a condition that will likely cost him the ability to walk in the next several years.

Nine-year-old Liam, who suffers from a form of muscular dystrophy, ran the bases at Fenway Park. (WBZ-TV)

Nine-year-old Liam, who suffers from a form of muscular dystrophy, ran the bases at Fenway Park. (WBZ-TV)

“This is his fourth time running the bases at Fenway Park in Boston, and it might be his last,” Mcgourty wrote.

Jeff told WBZ-TV that it was an emotional day Sunday watching Liam soak in the moment.

“It meant everything to see that smile on his face running around those bases,” he said.

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Liam doesn’t let his condition slow him down. He was all smiles as he made the trip to home plate.

“When we went it was Wally’s birthday and I was on the big screen,” Liam beamed.

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Liam was so excited about the experience, that he can’t bring himself to taking off his baseball glove.

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To learn more about Liam’s battle with Duchenne Muscular Dystrophy, visit the Liam’s L.E.E.P. Facebook page.