[7] Coming out of college, Alexander was projected as a fifth or sixth round selection and ranked as the eight best inside linebacker by NFLDraftScout.com.

[8] He was invited to the NFL Scouting Combine and completed the broad jump, vertical, and bench press but did not participate in any running drills due to an injury.

[11] Alexander entered training camp battling for a position as a backup inside linebacker with veterans Justin Tuggle, Tank Carder, and rookie Scooby Wright.

Alexander entered the regular season as the backup left inside linebacker behind Demario Davis.

His father player college football at Oklahoma State and his brother, Derrick Alexander Jr. currently plays defensive lineman at Tulsa.