49ers add QB Adrian Martinez ahead of game at Rams

(Photo credit: Vincent Carchietta-Imagn Images)

The San Francisco 49ers have promoted quarterback Adrian Martinez from the practice squad to the active roster ahead of Thursday night's road game against the Los Angeles Rams.

The 49ers (3-1) already had ruled out quarterback Brock Purdy (turf toe), making Mac Jones the starter against the Rams (3-1). Jones started in Weeks 2 and 3 when Purdy was sidelined. J