The 49ers placed Martin (concussion) on injured reserve Saturday.

EDGE Analysis

Martin will miss the remainder of the regular season, but he could come off IR and resume contributing if San Francisco makes the playoffs. The rookie third-round pick has tallied 11 tackles (eight solo) and one forced fumble across seven regular-season appearances.

Martin remains in the league's concussion protocol Monday, Matt Barrows of The Athletic reports.

EDGE Analysis

Martin was concussed in Week 13 against Cleveland and missed Sunday's win over the Titans. Across seven appearances this season, Martin has logged 15 defensive snaps and another 74 on special teams.

Martin (concussion) is out for Sunday's game versus Tennessee, Cam Inman of The San Jose Mercury News reports.

EDGE Analysis

Martin sustained a concussion in Week 13 at Cleveland prior to San Francisco's Week 14 bye, and now he'll be sidelined for Week 15 as he continues to recover. His absence could mean more reps at linebacker for veteran Luke Gifford.

Martin has entered the league's concussion protocol and has been ruled out for the rest of Sunday's game against the Browns, Cam Inman of The San Jose Mercury News reports.

EDGE Analysis

The 49ers are on a bye in Week 14, so Martin will have additional time to progress through and clear the league's concussion protocol before San Francisco's Week 15 clash against Tennessee on Sunday, Dec. 14. The rookie third-rounder has contributed mostly on special teams, but his absence further depletes a 49ers linebacker corps that is without Tatum Bethune (ankle) and Fred Warner (ankle - IR).

Martin has exited Sunday's game against the Browns and is being evaluated for a possible concussion, Nick Wagoner of ESPN.com reports.

EDGE Analysis

Martin will be analyzed by one of the league's independent neurologists to determine if he can return to the game. Before the linebacker's early exit, he logged one solo tackle.