Mark Andrew Reynolds is an American former professional baseball third baseman and first baseman. He played in Major League Baseball (MLB) for the Arizona Diamondbacks, Baltimore Orioles, Cleveland Indians, New York Yankees, Milwaukee Brewers, St. Louis Cardinals, Washington Nationals, and two stints with the Colorado Rockies. A right-hander both when batting and throwing, Reynolds was known for his frequent and long home runs, high strikeout totals, and defensive versatility, having been primarily a third baseman before transitioning to first base while playing for the Orioles.