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The Boston Globe

Sports

Red Sox complete Mike Napoli deal, despite hip ailment

Newly signed Red Sox first baseman Mike Napoli said he never has experienced symptoms from a very serious hip condition known as avascular necrosis, which he says was diagnosed during the physical he took for the team last month.

The condition, known as AVN, restricts blood flow to the hip joints and can ultimately collapse the bone. It is what ended the athletic career of two-sport star Bo Jackson.

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