| Monday, August 21st, 1978 | Activated SS Norm Milligan from the disabled list. | Thursday, August 17th, 1978 | Activated 3B Ronald Weber from the disabled list. | Friday, August 11th, 1978 | Placed 2B Pedro Mendoza on the 15-day disabled list. | Saturday, August 5th, 1978 | Activated 2B Pedro Mendoza from the disabled list. | Thursday, August 3rd, 1978 | Placed MR Jeffery Jackson on the 15-day disabled list. | Thursday, June 29th, 1978 | Placed 2B Pedro Mendoza on the 15-day disabled list. | Tuesday, June 20th, 1978 | Placed RF Daniel Holloway on the 15-day disabled list. | Thursday, June 15th, 1978 | Promoted C Kirk Taylor to Double A Anaheim. | Drafted LF Júlio González in the 1978 first-year player draft (Round 6, Pick 4, 109th overall pick). | Drafted SP Jeffery Jackson in the 1978 first-year player draft (Round 7, Pick 4, 129th overall pick). | Drafted 2B Darryl Rush in the 1978 first-year player draft (Round 8, Pick 4, 149th overall pick). | Drafted SP Miguel Manuel in the 1978 first-year player draft (Round 9, Pick 4, 169th overall pick). | Drafted C Chris Thomas in the 1978 first-year player draft (Round 10, Pick 4, 189th overall pick). | Promoted 1B Ken Rodgers to Double A Anaheim. | Received RF Andrew Camp from Double A Anaheim. | Saturday, April 22nd, 1978 | Activated LF Andrew Camp from the disabled list. | Monday, April 10th, 1978 | Placed RF Iemitsu Gato on the 15-day disabled list. | Friday, April 7th, 1978 | Placed LF Andrew Camp on the 15-day disabled list. | Friday, February 17th, 1978 | Activated SP Juan Cardenas from the disabled list. | Thursday, February 2nd, 1978 | Placed SP Juan Cardenas on the 15-day disabled list. | |
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