Robinson has elected to retire, Mike Rodak of ESPN.com reports.

EDGE Analysis

Robinson, who's been in the league since 2012, signed in late July with the Bills but apparently wasn't in line for meaningful minutes and might not have even made the team. This will be on less question mark for Buffalo, which already has several decisions to make regarding an unproven linebacking corps.

Robinson (quad) signed a contract with the Bills on Tuesday, Ian Rapoport of NFL Network reports.

EDGE Analysis

Robinson, according to Joe Buscaglia of WKBW.com, should provide some competition at the bottom of the NFL depth chart with the likes of Tanner Vallejo, Deon Lacy and Julian Stanford. His 2017 campaign ended with a move to injured reserve for a quad issue, so his signing is likely an indication that Robinson is healthy as training camp approaches.

Robinson (quadriceps) was placed on injured reserve Tuesday, Michael Eisen of the Giants' official site reports.

EDGE Analysis

Robinson suffered a quad injury in Week 9's loss to the Rams, bringing his season to sudden halt. The veteran linebacker missed the first two games of the season with a concussion but then went on to play in the next six contests (three starts) -- recording 32 tackles (20 solo) in the process. Look for Jonathan Casillas to take on a larger role for the remainder of the season with Robinson sidelined.

Robinson (quadriceps) is listed as out for Sunday's game against the 49ers, Art Stapleton of The Bergen Record reports.

EDGE Analysis

Five of the Giants' top-six linebackers are nursing injuries right now, leaving just three healthy ones. Starter Jonathan Casillas (neck) is currently questionable to play Sunday, but if he can't go either, expect Deontae Skinner to make the start at weakside linebacker.

Robinson injured his quadriceps Sunday against the Rams and is questionable to return.

EDGE Analysis

Robinson missed a pair of games to begin the season due to a concussion, but he's been playing significant snaps due to Jonathan Casillas' neck injury. The 28-year-old has compiled 30 tackles (20 solo) so far this season, and his injury makes the Giants' linebacker corps even more skimp.

Robinson led the Giants in tackles with nine (six solo) in Sunday's loss to the Seahawks.

EDGE Analysis

Robinson has yet to record a sack or turnover this season, but continues to be involved in the tackle department. He was on the field for 67 snaps (88.0 percent) so his relatively high workload should indicate more opportunities for tackles, sacks, and takeaways going forward.

Robinson (concussion) was a full participant at the Giants' practice Thursday, Ralph Vacchiano of SportsNet New York reports.

EDGE Analysis

Robinson has finally cleared the league's concussion protocol after sustaining a concussion in early August. The 28-year-old will likely resume a role as a special teams contributor and backup to Jonathan Casillas.

Robinson (concussion) has been ruled out for Monday's game against Detroit, Jordan Raanan of ESPN.com reports.

EDGE Analysis

Robinson is used mostly as a depth linebacker and special teamer, so his loss won't alter the game plan too much. Should the veteran starter Jonathan Casillas fall victim to the injury bug, J.T. Thomas seems like the likely replacement.

Robinson (concussion) was a limited participant at in the Giants' practice Friday.

EDGE Analysis

This is good news after Robinson did not practice Thursday in addition to last week. The 28-year-old has been in the concussion protocol since early August and remains a question mark for Monday night's game against the Lions.

Robinson (concussion) will not play in Sunday's season opener against the Cowboys.

EDGE Analysis

Robinson has been in concussion protocol for over a month now, and since the linebacker was still unable to practice this week, his absence Sunday comes as no surprise. Robinson should be considered week-to-week at this point, while Jonathan Casillas is expected to take majority of the snaps at weak-side linebacker this weekend.