<p>In 1986, McCallum played for the Los Angeles Raiders while splitting duty with the United States Navy before having to spend his 5-year commitment with the Navy. He rushed for his season-high NFL totals with 536 yards while splitting playing time with incumbent Marcus Allen.</p>
<p>After serving his duty with the Navy until 1990, McCallum rejoined the Raiders. His playing time was limited as he played special teams and as a short-yardage specialty back.</p>
<p>1986, 1990-1994: Los Angeles Raiders</p>