Chicago Black Sox
Development Update |  | | Saturday, September 21st, 2013 | | Catcher D. Grenfell (Rolling Meadows Mustangs, Rookie League) hitting potential DROPS. |
| Friday, September 20th, 2013 | | Third Base H. Kichikawa (Mount Prospect Knights, Triple A) hitting potential DROPS. |
| Thursday, September 19th, 2013 | | Reliever L. Lespérance (Bensenville Blaze, Single A) pitching potential INCREASES. |
| Wednesday, September 18th, 2013 | | Second Base T. Rivera (Melrose Park Generals, Short Season A) hitting potential DROPS. |
| Saturday, September 14th, 2013 | | Reliever A. Marion (Rolling Meadows Mustangs, Rookie League) pitching potential DROPS. |
| Friday, September 13th, 2013 | | Third Base R. Short hitting potential DROPS. |
| Saturday, August 31st, 2013 | | Third Base S. Nakamura (Melrose Park Generals, Short Season A) hitting potential DROPS. |
| Thursday, August 29th, 2013 | | Designated Hitter C. Miranda (Melrose Park Generals, Short Season A) hitting potential INCREASES. |
| Saturday, August 24th, 2013 | | Catcher B. Hewitson (Bensenville Blaze, Single A) hitting potential DROPS. | | Catcher B. Pitts (Rolling Meadows Mustangs, Rookie League) hitting potential DROPS. |
| Friday, August 23rd, 2013 | | Starting Pitcher V. Armstrong (Rolling Meadows Mustangs, Rookie League) pitching potential DROPS. |
| Saturday, August 17th, 2013 | | Center Field F. Valdéz (Rolling Meadows Mustangs, Rookie League) hitting potential DROPS. | | Third Base P. Vargas (Rolling Meadows Mustangs, Rookie League) hitting potential INCREASES. | | Reliever J. Mann (Rolling Meadows Mustangs, Rookie League) pitching potential DROPS. |
| Thursday, August 15th, 2013 | | Left Field S. Delgado (Rolling Meadows Mustangs, Rookie League) hitting potential INCREASES. |
| Thursday, August 8th, 2013 | | Shortstop P. Flores (Bensenville Blaze, Single A) hitting potential DROPS. |
| Wednesday, August 7th, 2013 | | Right Field J. Taylor (Mount Prospect Knights, Triple A) hitting potential DROPS. |
| Saturday, August 3rd, 2013 | | Shortstop R. Mata (Rolling Meadows Mustangs, Rookie League) hitting potential DROPS. |
| Saturday, July 27th, 2013 | | Catcher S. Nakamura (Rolling Meadows Mustangs, Rookie League) hitting potential INCREASES. | | Reliever C. Britt (Rolling Meadows Mustangs, Rookie League) pitching potential DROPS. | | Starting Pitcher J. Moore (Rolling Meadows Mustangs, Rookie League) pitching potential DROPS. |
| Friday, July 19th, 2013 | | Starting Pitcher B. Rosado (Arlington Heights Godzillas, Double A) pitching potential INCREASES. |
| Saturday, June 29th, 2013 | | Second Base P. Romero (Bensenville Blaze, Single A) hitting potential INCREASES. |
| Thursday, June 27th, 2013 | | Starting Pitcher H. Goodyear pitching potential DROPS. |
| Thursday, June 20th, 2013 | | Third Base B. Walker (Melrose Park Generals, Short Season A) hitting potential INCREASES. |
| Friday, June 14th, 2013 | | Starting Pitcher C. Negrete (Rolling Meadows Mustangs, Rookie League) pitching potential DROPS. |
| Thursday, June 13th, 2013 | | Starting Pitcher W. Lems (Melrose Park Generals, Short Season A) pitching potential INCREASES. |
| Friday, June 7th, 2013 | | Starting Pitcher C. Williams (Melrose Park Generals, Short Season A) pitching potential INCREASES. |
| Thursday, June 6th, 2013 | | Third Base L. Derks (Arlington Heights Godzillas, Double A) hitting potential INCREASES. |
| Friday, May 31st, 2013 | | Closer A. Oda (Arlington Heights Godzillas, Double A) pitching potential DROPS. |
| Friday, May 17th, 2013 | | Starting Pitcher C. Negrete (Rolling Meadows Mustangs, Rookie League) pitching potential DROPS. |
| Monday, May 13th, 2013 | | Starting Pitcher C. García (Arlington Heights Godzillas, Double A) pitching potential DROPS. |
| Friday, May 10th, 2013 | | Starting Pitcher E. Hamilton (Arlington Heights Godzillas, Double A) pitching potential DROPS. | | Starting Pitcher P. Patterson (Melrose Park Generals, Short Season A) pitching potential DROPS. |
| Friday, April 19th, 2013 | | Second Base R. Kudo (Bensenville Blaze, Single A) hitting potential DROPS. |
| Thursday, April 18th, 2013 | | Left Field J. Marés (Rolling Meadows Mustangs, Rookie League) hitting potential INCREASES. | | Starting Pitcher J. Gonzáles (Arlington Heights Godzillas, Double A) pitching potential DROPS. |
| Wednesday, April 17th, 2013 | | Reliever J. Mora (Arlington Heights Godzillas, Double A) pitching potential DROPS. |
| Tuesday, April 16th, 2013 | | Starting Pitcher J. Calderón pitching potential DROPS. |
| Saturday, April 13th, 2013 | | Starting Pitcher M. Orpilla (Rolling Meadows Mustangs, Rookie League) pitching potential DROPS. |
| Thursday, April 11th, 2013 | | Starting Pitcher H. Moore (Bensenville Blaze, Single A) pitching potential DROPS. |
| Thursday, April 4th, 2013 | | Catcher J. Pérez (Arlington Heights Godzillas, Double A) hitting potential DROPS. |
| Friday, March 29th, 2013 | | Catcher A. Álvarez (Bensenville Blaze, Single A) hitting potential DROPS. | | Right Field R. Sloan (Arlington Heights Godzillas, Double A) hitting potential DROPS. |
| Monday, March 18th, 2013 | | Starting Pitcher A. Gravel (Arlington Heights Godzillas, Double A) pitching potential INCREASES. |
| Saturday, March 16th, 2013 | | Catcher D. Perrault (Bensenville Blaze, Single A) hitting potential DROPS. |
| Friday, March 8th, 2013 | | Center Field M. Sato (Mount Prospect Knights, Triple A) hitting potential DROPS. |
| Thursday, March 7th, 2013 | | Second Base R. Mateo (Arlington Heights Godzillas, Double A) hitting potential DROPS. |
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