 |  | 04/26/1981 |  | | | | | | | | | |  | Houston Bullfighters |  | |
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| Sunday, March 29th, 1981 | Placed 2B Arturo Gallegos on the 9-day disabled list. | Sunday, February 1st, 1981 | Purchased the contract of SP Mike Welch from Double A Anaheim. | MR Máximo Rivera was designated for assignment, placed on waivers and taken off the 40-man roster. | Monday, October 13th, 1980 | Signed pitching coach Pavel Warya to a 5-year, $127,900 per year contract. | |
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