San Diego acquired Workman and right-hander Casey Mize from Detroit on Monday in exchange for left-handers Kash Mayfield and Jackson Wolf, Ken Rosenthal of The Athletic reports.
Workman will join the fourth organization of his career after stops with the Tigers, Cubs and White Sox. The 26-year-old was added to the Tigers' 40-man roster May 10 and struggled in his brief time in the majors earlier this season, batting just .158 while striking out in 16 of 38 plate appearances. Workman has been productive at Triple-A Toledo, however, posting an .868 OPS with 11 home runs and 20 steals in 82 games. The Padres haven't indicated if he'll head to Triple-A El Paso or report to the big club, where he could be a valuable bench piece due to his ability to play all three outfield spots and multiple infield positions.