Boston Red Sox

Watch live: Red Sox officially introduce J.D. Martinez

J.D. Martinez connects for a two-run home run against the San Diego Padres.

By Mark Dunphy

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https://www.facebook.com/RedSox/videos/10155210776251766/

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The Red Sox are introducing free agent signing J.D. Martinez at a press conference Monday morning. President of baseball operations Dave Dombrowski announced Monday the team signed a five-year contract with the slugger.