A pair of Triple-A pitchers will miss at least two starts as they recover from injuries their organizations don’t consider serious.

Reds righthander Homer Bailey was placed on the minor league disabled list for the second time this season for the same ailment: a strained right groin. Team medical director Dr. Tim Kremchek examined Bailey last week, deeming the strain moderate, and will do so again in about two weeks.

Bailey, 21, had one exceptional start against the Athletics and two other good ones, but his first big league exposure resulted in 2-2, 6.99 numbers with a poor 15-21 K-BB ratio. His fortunes did not improve upon his demotion to Louisville, where the team ostensibly optioned him to get work during the all-star break, as he was 0-2, 8.00 in two starts with 8-8 K-BB.

An emerging prospect and author of a 44-inning stretch in which he didn’t allow an earned run, Twins righthander Nick Blackburn was placed on the disabled list last week with a strained right forearm. The Twins regard the move as precautionary.

The 25-year-old Blackburn came to spring training this season in the best shape of his life, but still couldn’t crack the Triple-A rotation because of the presence of top arms Matt Garza, Kevin Slowey, Glen Perkins and Scott Baker. When big league promotions robbed the Red Wings of those pitchers, Blackburn stepped into the void and thrived, going 6-1, 2.09 in 11 starts.

Lefthanders Brian Duensing and Ryan Mullins—like Garza and Slowey top college picks from the Twins’ 2005 draft—have followed Blackburn to Rochester.