Reds claim RH Alfredo Simon off waivers
The 30-year-old reliever missed part of spring training with a strained groin. He was placed on waivers after Toronto scored six runs in two innings off him during a game last week.
The Reds didn't immediately add him to the roster, which is full. Cincinnati opens the season Thursday against Miami.
Simon saved 17 games for Baltimore in 2010. He split time between the bullpen and the rotation last season, going 4-9 with a 4.90 ERA overall.