| | | Thursday, October 12th, 1972 | | SP S. Koufax retires. |
| Monday, August 21st, 1972 | | Signed RF R. Jackson to a 2-year contract extension worth a total of $8,220,000. | | Signed CF B. Bonds to a 2-year contract extension worth a total of $5,900,000. |
| Sunday, April 16th, 1972 | | Placed SP R. Kline on the 60-day disabled list. | | Purchased the contract of SP J. Reuss from Triple A Toronto. |
| Saturday, February 12th, 1972 | | Signed free agent SP R. Kline to a 1-year contract worth a total of $1,650,000. | | Signed free agent SP S. Koufax to a 1-year contract worth a total of $690,000. |
| Friday, February 11th, 1972 | | Signed free agent MR L. Sherry to a 2-year contract worth a total of $4,000,000. |
| Wednesday, February 9th, 1972 | | Signed free agent LF M. Alou to a 3-year contract worth a total of $3,930,000. |
| Sunday, February 6th, 1972 | | Signed free agent RF B. Williams to a 3-year contract worth a total of $10,830,000. | | Signed free agent C J. Oates to a 2-year contract worth a total of $900,000. |
| Monday, November 1st, 1971 | | MR J. Reuss received a 1-year contract through automatic renewal worth a total of $2,100,000. | | CF B. Bonds received a 1-year contract through automatic renewal worth a total of $2,200,000. | | RF R. Jackson received a 1-year contract through automatic renewal worth a total of $2,000,000. | | MR W. Granger received a 1-year contract through automatic renewal worth a total of $750,000. | | SP D. Ellis received a 1-year contract through automatic renewal worth a total of $1,500,000. | | SP S. Koufax becomes a free-agent. | | SS R. Metzger received a 1-year contract through automatic renewal worth a total of $300,000. | | CF S. Brye received a 1-year contract through automatic renewal worth a total of $300,000. | | CL R. Hernandez received a 1-year contract through automatic renewal worth a total of $750,000. | | 3B A. Rodriguez received a 1-year contract through automatic renewal worth a total of $300,000. | | MR B. Kison received a 1-year contract through automatic renewal worth a total of $500,000. | | CF G. Clines received a 1-year contract through automatic renewal worth a total of $300,000. | | 2B V. Fuller received a 1-year contract through automatic renewal worth a total of $450,000. | | SS D. Maxvill received a 1-year contract through automatic renewal worth a total of $300,000. | | LF L. Biittner received a 1-year contract through automatic renewal worth a total of $300,000. | | RF B. Voss received a 1-year contract through automatic renewal worth a total of $300,000. | | CL J. York received a 1-year contract through automatic renewal worth a total of $750,000. | | 2B B. Grich received a 1-year contract through automatic renewal worth a total of $1,500,000. | | SP R. Grimsley received a 1-year contract through automatic renewal worth a total of $2,000,000. | | MR R. Fingers received a 1-year contract through automatic renewal worth a total of $2,200,000. | | Released CF C. Tovar. | | Released SS D. Maxvill. |
| Friday, October 29th, 1971 | | LF C. Yastrzemski received a 1-year contract through arbitration worth a total of $1,504,800. | | SP B. Hands received a 1-year contract through arbitration worth a total of $3,773,000. | | CL J. Hoerner received a 1-year contract through arbitration worth a total of $2,576,000. | | CF C. Tovar received a 1-year contract through arbitration worth a total of $900,000. | | C T. Haller received a 1-year contract through arbitration worth a total of $2,520,700. |
| Friday, October 8th, 1971 | | Executed the last optional contract year of 1B F. Howard. |
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