The Chargers signed Watkins to the active roster Friday.
Watkins was released by the Texans on Saturday, Ian Rapoport of NFL Network reports.
The Texans signed Watkins to a two-year, $3 million contract Friday, Tom Pelissero of NFL Network reports.
Watkins posted 29 tackles (20 solo) and a pass deflection in 2019.
Watkins finished Monday's 24-17 loss to Kansas City with 11 tackles.
Watkins signed a contract with the Chargers on Monday, MyNewsLa.com reports.
Watkins was released by the Chargers on Saturday, Eric D. Williams of ESPN.com reports.
Watkins (knee) did not record a tackle in Saturday's preseason loss to the Seahawks.
Watkins (knee) did not practice Tuesday, Daniel Popper of The Athletic reports.
Watkins (knee) is in contention for the starting free safety job, Eric D. Williams of ESPN.com reports.