The free agent Nixon hit 27 home runs in his last three seasons combined in Boston, one fewer than the career-high 28 he hit in 2003, and he had a career-low slugging percentage of .394, almost 200 percentage points lower than his career-best .578 SGP in ’03. Injuries played a part, to be sure, but even when healthy Nixon ceased to be the power threat he’d been in the past.