Minor Moves: Brian Omogrosso, Ji-Man Choi, Rafael Perez

Here are the day's minor moves:

• Former White Sox pitcher Brian Omogrosso has signed on with the independent league Blueport Bluefish, tweets Chris Cotillo of MLBDailyDish.com. The 29-year-old righty has a 5.54 ERA in 37 1/3 career MLB innings.
• Mariners prospect Ji-Man Choi has been suspended for 50 games, the Associated Press reported yesterday (via ESPN.com). Choi, a 22-year-old who was on the club's 40-man, tested positive for methandienone. He received the older first-time-offender penalty because his test was taken before new PED suspension guidelines were put in place.
• The Rangers have released lefty Rafael Perez, reports Gerry Fraley of the Dallas Morning News. Perez, 31, struggled at the Triple-A level this year. He was a significant part of the Indians pen between 2006-12, but has been dealing with shoulder issues.
• The DFA limbo ranks grew significantly today, as MLBTR's DFA Tracker shows. In order of earliest to latest, here's the current group: Sam Fuld (Athletics), Lucas Harrell (Astros), Ryan Rowland-Smith (Diamondbacks), Andy Parrino (Rangers), and Ryan Roberts (Red Sox).