Patterson was signed to the Vikings' practice squad Tuesday, Craig Peters and Rob Kleifield of the team's official website report.
Patterson will get a chance to prove himself with Minnesota after opening the season as a free agent. The running back compiled 159 yards on 41 carries while catching three of four targets for eight yards over six regular-season contests with the Chargers in 2025. Wide receiver Trayvon Rudolph was cut from the Vikings' practice squad in a corresponding move.