Hekker (back) is active for Sunday's game against the Chargers, Darin Gantt of the Panthers' official site reports.
Hekker (personal) did not participate at practice Wednesday, David Newton of ESPN.com reports.
Hekker signed a three-year, $7.6 million contract with the Panthers on Friday, Adam Schefter of ESPN reports.
Hekker was released by the Rams on Wednesday.
Hekker (undisclosed) was activated from the reserve/COVID-19 injured list Thursday, Lindsey Thiry of ESPN.com reports.
The Rams placed Hekker on the reserve/COVID-19 list Saturday.
Hekker signed a $4.25 million contract extension with the Rams on Saturday, Adam Schefter of ESPN reports. He's now tied to the team for five years at $18.75 million.
Hekker made his only field-goal attempt and only extra-point try after being forced into kicking duties following teammate Greg Zuerlein's groin injury suffered during Sunday's game against the Cardinals.