| Sunday, August 17th, 1980 | Activated 3B Jeff Sexton from the disabled list. | Friday, August 8th, 1980 | Activated MR Bill Davidson from the disabled list. | Saturday, August 2nd, 1980 | Placed 3B Jeff Sexton on the 15-day disabled list. | Sunday, July 27th, 1980 | Activated 3B Jeff Sexton from the disabled list. | Thursday, July 24th, 1980 | Placed C Bill Browne on the 15-day disabled list. | Saturday, July 12th, 1980 | Placed 3B Jeff Sexton on the 15-day disabled list. | Wednesday, June 25th, 1980 | Placed CL Tim Schultz on the 15-day disabled list. | Monday, June 23rd, 1980 | Activated RF Luis Tirado from the disabled list. | Saturday, June 14th, 1980 | Placed MR Bill Davidson on the 15-day disabled list. | Wednesday, May 28th, 1980 | Placed RF Luis Tirado on the 15-day disabled list. | Tuesday, May 20th, 1980 | Activated RF Peter Park from the disabled list. | Saturday, May 17th, 1980 | Placed SP Mike Wiggins on the 15-day disabled list. | Placed MR Bill Davidson on the 15-day disabled list. | Saturday, May 10th, 1980 | Activated 2B Luis Tirado from the disabled list. | Friday, April 25th, 1980 | Placed 2B Luis Tirado on the 15-day disabled list. | Thursday, April 17th, 1980 | Placed RF Peter Park on the 15-day disabled list. | Wednesday, November 28th, 1979 | Received MR Bob Martin from Major League Level Chicago. | Sunday, October 14th, 1979 | Received SP Sean Díaz from Major League Level Chicago. | |
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