More Reds: Journey to the center of the field
Prior has not appeared in the majors since 2006, as he's been dealing with an array of shoulder problems. This is certainly not the 32-year-old's first comeback attempt, as he's pitched in the minor league systems of the Texas Rangers, New York Yankees and Boston Red Sox over the past three seasons.
The agreement with Cincinnati reunites Prior with Dusty Baker, who managed the right-hander when the duo were members of the Chicago Cubs.
It was with the Cubs that Prior rose through the minors as a top prospect and won 18 games while posting a 2.43 ERA in 2003 as a 22-year-old. It would mark his only 30-start campaign in the bigs, as he was eventually released by Chicago following the 2006 season.
Prior went on to spend a few seasons with the San Diego Padres, but his shoulder never allowed him to officially log an inning with the organization. He wouldn't appear in the minors again until 2010 with the Rangers.
Over five years in the majors, Prior owns a career ERA of 3.51 with a 3.39 strikeout-to-walk ratio.