ORCHARD PARK, N.Y. (AP) — The Buffalo Bills have placed linebacker Keenan Robinson on the reserve/retired list.

The move on Thursday comes a month after the Bills signed the sixth-year player just before they opened training camp.

Defensive coordinator Leslie Frazier characterized Robinson's decision as personal, adding he has a lot of respect for him as a person and player.

The 29-year-old Robinson spent the previous two seasons with the New York Giants. He was limited to playing six games last year before sustaining a season-ending quadriceps injury.

He spent his first four seasons with Washington after being selected in the fourth round of the 2012 draft. He missed all of 2013 with a torn pectoral muscle.

Overall, Robinson had two interceptions and 1½ sacks in 58 career games, including 30 starts.

The Bills also released defensive tackle Tenny Palepoi. This comes after they signed Palepoi on Sunday.

Copyright 2018 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

More From KSOO-AM / ESPN Sioux Falls