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Seattle Mariners
Development Update |  | | Sunday, September 15th, 2019 | | Shortstop R. Cline (Modesto Beavers, Single A) hitting potential INCREASES. |
| Tuesday, August 20th, 2019 | | Starting Pitcher N. Roche (Modesto Beavers, Single A) pitching potential INCREASES. |
| Monday, August 5th, 2019 | | Second Base A. Torralbo (Modesto Beavers, Single A) hitting potential INCREASES. | | Second Base K. Bibby (Modesto Beavers, Single A) hitting potential INCREASES. |
| Monday, July 8th, 2019 | | Shortstop G. Campo (Norfolk Wombats, Triple A) hitting potential INCREASES. |
| Tuesday, June 18th, 2019 | | Starting Pitcher N. Roche (Modesto Beavers, Single A) pitching potential DROPS. |
| Monday, June 3rd, 2019 | | Catcher T. Shozaburo (Modesto Beavers, Single A) hitting potential INCREASES. |
| Sunday, May 26th, 2019 | | Reliever T. Brode (Modesto Beavers, Single A) pitching potential INCREASES. |
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