Porter, 42, has been the third-base coach for the Washington Nationals. He also had coaching stints with the Florida Marlins and Arizona Diamondbacks.
Porter was a 40th-round draft pick of the Chicago Cubs in 1993 and had short playing stints with the Cubs, Oakland Athletics and Texas Rangers. He was a .214 career hitter in 89 MLB games.
Porter played outfield for the Iowa baseball team and defensive back for the Iowa football team from 1990-94.