Tony Scheffler is retiring from the NFL.

The former Detroit Lions and Western Michigan tight end told the Associated Press today that he made the choice because he had three concussions over the past four years.

He had 258 receptions for 3,207 yards and 22 touchdowns in his eight-year career. The Lions released Scheffler in October. He later had workouts with Chicago and Kansas City and says there was “moderate” interest in him as a free agent this off-season.