Immediately following the draft last month, the Raiders got to work on signing undrafted free agents. Today, just prior to the rookies taking the field for rookie minicamp, the team made 15 additions official.
| Player | Position | Height | Weight | College |
| Tank Booker | DT | 6-3 | 347 | SMU |
| Dominic Boyd | T | 6-3 | 309 | Georgia Southern |
| Hudson Clark | S | 6-0 | 194 | Arkansas |
| Parker Clements | T | 6-6 | 295 | Virgina Tech |
| Pat Conroy | TE | 6-2 | 240 | Old Dominion |
| Mello Dotson | CB | 6-0 | 192 | Kansas |
| Zakhari Franklin | WR | 6-1 | 204 | Illinois |
| Jarrod Hufford | C | 6-3 | 322 | Iowa State |
| John Humphrey | CB | 6-2 | 193 | USC |
| Matt Jones | LB | 6-2 | 236 | Baylor |
| Jah Joyner | DE | 6-4 | 262 | Minnesota |
| Treven Ma’ae | DT | 6-3 | 277 | Baylor |
| Carter Runyon | TE | 6-4 | 243 | Towson |
| Greedy Vance | CB | 5-9 | 182 | USC |
| Jailin Walker | LB | 6-0 | 219 | Indiana |
These rookies, along with the 11 players they added from the draft, will take the field today for the first time as Raiders.