Mike Napoli has avascular necrosis in his hips
Unburdened by catching, injury, Mike Napoli looks powerfully good
Camden Depot: Would Mike Napoli Be a Smart Signing for the Orioles?
For Mike Napoli, this spring is better in all ways - The Boston Globe
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Red Sox To Re-Sign Mike Napoli - MLB Trade Rumors
World Series teams say goodbye to stars, hello to pennants - MLB
Re-signing Mike Napoli top priority for Red Sox - The Boston Globe
2013 World Series -- Mike Napoli has made, kept friends at every
Mike Napoli's Hip Issue Called 'Avascular Necrosis,' But Symptom
Mike Napoli Makes Opponents Pay - The New York Times