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Oakland Athletics
Development Update |  | | Sunday, September 22nd, 2019 | | Left Field E. Proulx (Cedar Grove Orioles, Single A) hitting potential INCREASES. |
| Monday, June 24th, 2019 | | Reliever J. Fresquez pitching potential INCREASES. |
| Sunday, June 16th, 2019 | | Catcher J. Vestal hitting potential DROPS. |
| Tuesday, June 11th, 2019 | | Starting Pitcher K. Daniels (Glendale Ghostriders, Double A) pitching potential DROPS. |
| Sunday, May 26th, 2019 | | Closer E. McCleary (Cedar Grove Orioles, Single A) pitching potential DROPS. |
| Monday, April 22nd, 2019 | | Closer A. Zuņiga (Glendale Ghostriders, Double A) pitching potential DROPS. |
| Tuesday, April 2nd, 2019 | | Starting Pitcher K. Hollenbeck (Glendale Ghostriders, Double A) pitching potential DROPS. |
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