Staff Sgt. Mike Ruffin (right) spars with his coach, Sidney Russell, in Wheelock Fitness Center as Sgt. 1st Class Jeffrey Cereceres, a co-worker and coach, records the session.

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Keywords: air, america, archive, armed, army, boxer, cannon, chuck, defence, force, forces, fort, guardian, mike, military, navy, polk, reportage, ruffin, service, serviceman, servicemen, sgt, soldier, staff, states, united, usa