.@JackoHumanFlag retired from rugby after accumulative concussion equalled that of a pro boxing KO #capitalinvestigates

A Capital investigation has found more rugby players are reporting concussion. David Jackson used to play as a full-back for Nottingham in the Championship before retiring in 2013 due to a head injury. Over his career, which lasted more than a decade, he got knocked out 'cold' six times and got concussed so many times, he's lost count.