Law signed a minor-league contract with the Reds on Sunday.
Law was designated for assignment by the Tigers in early August and elected free agency after clearing waivers. He'll settle for a minor-league deal with the Reds and will report to Triple-A Louisville to begin his time with the organization. Over 33 appearances at Triple-A Toledo this year, the 31-year-old has posted a 3.23 ERA and 1.21 WHIP in 39 innings.