Sports ‘No longer safe’: NFL linebacker Kylie Fitts retires at 27 due to multiple concussions April 15, 2022April 16, 2022 Bob McManaman, Arizona Republic Comments Off on ‘No longer safe’: NFL linebacker Kylie Fitts retires at 27 due to multiple concussions Kylie Fitts wrote, "Due to too many concussions and the severity of my recent one, it is no longer safe for me to continue to play."