| Date | Transaction |
| 02-28-2090 | Eric Porter has retired from the New York Gentle Giants. |
| 10-04-2088 | The New York Gentle Giants have moved Eric Porter to the active roster. The New York Gentle Giants have moved Joe Krouse to the inactive roster. |
| 10-04-2088 | The New York Gentle Giants have acquired Eric Porter from the waiver wire. |
| 09-06-2088 | The St. Louis Cardinals have waived Eric Porter. |
| 09-05-2088 | The St. Louis Cardinals have moved Mike Harden and Elmo Feather to the active roster. The St. Louis Cardinals have moved Eric Porter and Deacon Bracelin to the inactive roster. |
| 08-29-2088 | Eric Porter of the St. Louis Cardinals is injured with a moderate concussion and is expected to be out for approximately 17 days. |
| 12-21-2087 | The St. Louis Cardinals have moved Eric Porter to the active roster. The St. Louis Cardinals have moved Eric Phillips to the inactive roster. |
| 12-01-2087 | The St. Louis Cardinals have moved Eric Phillips to the active roster. The St. Louis Cardinals have moved Eric Porter to the inactive roster. |
| 11-30-2087 | Eric Porter of the St. Louis Cardinals is injured with a shoulder muscle strain and is expected to be out for approximately 16 days. |
| 10-07-2086 | The St. Louis Cardinals have moved Eric Porter and Larry Strahan to the active roster. The St. Louis Cardinals have moved Bob Neil and Billy Ray Pool to the inactive roster. |
| 09-30-2086 | The St. Louis Cardinals have moved Billy Ray Pool to the active roster. The St. Louis Cardinals have moved Eric Porter to the inactive roster. |
| 09-29-2086 | Eric Porter of the St. Louis Cardinals is injured with a leg contusion and is expected to be out for approximately 6 days. |
| 09-02-2086 | The St. Louis Cardinals have moved Scott Stover, Eric Porter, and Thron Gibson to the active roster. The St. Louis Cardinals have moved Don Boyd, Billy Ray Pool, and Eric Phillips to the inactive roster. |
| 04-28-2086 | The St. Louis Cardinals have moved Eric Phillips to the active roster. The St. Louis Cardinals have moved Eric Porter to the inactive roster. |
| 09-03-2085 | The St. Louis Cardinals have moved Scott Stover, Eric Porter, Thron Gibson, John Russell, and Larry Strahan to the active roster. The St. Louis Cardinals have moved Sid Kemp, Ken Mellus, Rod Moran, Dameyune Quaerna, and Kirk Rapp to the inactive roster. |
| 08-20-2085 | The St. Louis Cardinals have moved Kirk Rapp to the active roster. The St. Louis Cardinals have moved Eric Porter to the inactive roster. |
| 01-21-2085 | The St. Louis Cardinals have moved Eric Porter to the active roster. The St. Louis Cardinals have moved Ken Mellus to the inactive roster. |
| 01-01-2085 | The St. Louis Cardinals have moved Dameyune Quaerna to the active roster. The St. Louis Cardinals have moved Eric Porter to the inactive roster. |
| 12-31-2084 | Eric Porter of the St. Louis Cardinals is injured with a moderate concussion and is expected to be out for approximately 18 days. |
| 09-04-2084 | The St. Louis Cardinals have moved Scott Stover, Eric Porter, and Thron Gibson to the active roster. The St. Louis Cardinals have moved Lloyd Monaco and Haven Kellar to the inactive roster. |
| 08-07-2084 | The St. Louis Cardinals have moved Haven Kellar to the active roster. The St. Louis Cardinals have moved Eric Porter to the inactive roster. |
| 09-06-2083 | The St. Louis Cardinals have moved Lloyd Monaco, Scott Stover, Eric Porter, Ed Kleinsasser, John "The Full" Monty, John Russell, and Larry Strahan to the active roster. The St. Louis Cardinals have moved Rob Dixon, Don Boyd, Louis Dowling, Steve Turner, Woody Fultz, Tom Jones, and Swede Brown to the inactive roster. |
| 05-02-2083 | The St. Louis Cardinals have moved Eric Porter to the inactive roster. |
| 12-28-2081 | Eric Porter of the St. Louis Cardinals is injured with a hip contusion and is expected to be out for approximately 2 days. |
| 10-05-2081 | Eric Porter of the St. Louis Cardinals is injured with a moderate concussion and is expected to be out for approximately 20 days. |
| 09-01-2081 | The St. Louis Cardinals have moved Leonta Maginnes, Scott Stover, Eric Porter, John "The Full" Monty, Darren Clayton, and Steve Glassic to the active roster. The St. Louis Cardinals have moved Riall Finlay, Darnell Brink, Chase Mahrt, Louis Dowling, Don Gibson, and John Russell to the inactive roster. |
| 08-11-2081 | The St. Louis Cardinals have moved Swede Brown to the active roster. The St. Louis Cardinals have moved Eric Porter to the inactive roster. |
| 09-02-2080 | The St. Louis Cardinals have moved Leonta Maginnes, Eric Porter, Gene Hargett, Bob Costello, John "The Full" Monty, and Steve Glassic to the active roster. The St. Louis Cardinals have moved Randy Ely, Jim O'Neill, Darnell Brink, Jerry Woods, Don Gibson, and John Russell to the inactive roster. |
| 08-05-2080 | The St. Louis Cardinals have moved Jerry Woods and Randy Ely to the active roster. The St. Louis Cardinals have moved Gene Hargett and Eric Porter to the inactive roster. |
| 01-28-2080 | Eric Porter of the St. Louis Cardinals is injured with an ACL sprain and is expected to be out for the rest of the season. |
| 09-04-2079 | The St. Louis Cardinals have moved Steve Glassic, Eric Porter, John "The Full" Monty, and Leonta Maginnes to the active roster. The St. Louis Cardinals have moved John Russell, Ramon Rifenburg, and Kevin Keane to the inactive roster. |
| 04-30-2079 | The St. Louis Cardinals have moved Lloyd Monaco, Darnell Brink, John Russell, and Brian Hantla to the active roster. The St. Louis Cardinals have moved Eric Porter, Bob Costello, John "The Full" Monty, and Steve Glassic to the inactive roster. |
| 09-05-2078 | The St. Louis Cardinals have moved Leonta Maginnes, Eric Porter, and Dennis Ball to the active roster. The St. Louis Cardinals have moved Lloyd Monaco, Tom Johnson, and Kirk Rapp to the inactive roster. |
| 01-31-2078 | The St. Louis Cardinals have moved Brian Hantla, Kevin Keane, and Al Allen to the active roster. The St. Louis Cardinals have moved Gene Hargett, Eric Porter, and Bob Costello to the inactive roster. |
| 09-06-2077 | The St. Louis Cardinals have moved Leonta Maginnes, Eric Porter, and Dennis Ball to the active roster. The St. Louis Cardinals have moved Lloyd Monaco, Pug Jones, and Kevin Keane to the inactive roster. |
| 05-02-2077 | The St. Louis Cardinals have moved George Price, Eric Porter, Hinkey Blackman, and Dennis Ball to the inactive roster. |
| 12-27-2076 | The St. Louis Cardinals have placed Eric Porter on the Injured Reserve list for the remainder of the season. |
| 12-27-2076 | Eric Porter of the St. Louis Cardinals is injured with a foot ligament sprain and is expected to be out for approximately 18 days. |
| 09-07-2076 | The St. Louis Cardinals have moved Leonta Maginnes, Eric Porter, John "The Full" Monty, Ramon Rifenburg, Dennis Ball, Kevin Keane, and Steve Glassic to the active roster. The St. Louis Cardinals have moved Lloyd Monaco, Rob Dixon, Robert Blanchard, Darnell Brink, Deon Cooper, Jeff Boselli, and Don Gibson to the inactive roster. |
| 08-10-2076 | The St. Louis Cardinals have moved Robert Blanchard, Darnell Brink, and Carl Moegle to the active roster. The St. Louis Cardinals have moved Eric Porter, Charles Farley, and Ramon Rifenburg to the inactive roster. |
| 09-09-2075 | The St. Louis Cardinals have moved Eric Porter to the active roster. The St. Louis Cardinals have moved Jeff Boselli to the inactive roster. |
| 09-09-2075 | The St. Louis Cardinals have acquired Eric Porter from the waiver wire. |
| 09-01-2075 | The Norfolk Redskins have waived Eric Porter. |
Defensive Tackle