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April 10, 2015 |
Rockies Extended Spring Training released LHP Michael Mason. |
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July 25, 2014 |
LHP Michael Mason assigned to Rockies Extended Spring Training from Asheville Tourists. |
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September 19, 2013 |
Asheville Tourists placed LHP Michael Mason on the restricted list. |
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July 27, 2013 |
LHP Michael Mason roster status changed by Asheville Tourists. |
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May 13, 2013 |
LHP Michael Mason assigned to Asheville Tourists from Grand Junction Rockies. |
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June 17, 2012 |
Michael Mason assigned to Grand Junction Rockies from Colorado Rockies. |
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June 15, 2012 |
Colorado Rockies signed LHP Michael Mason. |