10.4 Aggravating  Circumstances  which may Increase the Period of Ineligibility   If the WSF establishes in an individual case involving an anti -doping rule violation other than violations under Articles 2.7 ( Trafficking or Attempted Trafficking ), 2.8 ( Administration or Attempted Administration ), 2.9 ( Complicity ) or 2.11 ( Acts by an Athlete  or Ot her Person  to Discourage or Retaliate Against Reporting) that Aggravating  Circumstances  are present which   29 | P a g e   justify the imposition of a period of Ineligibility  greater than the standard sanction, then the period of Ineligibility  otherwise applica ble shall be  increased by an additional period of Ineligibility  of up to two (2) years depending on the seriousness of the violation and the nature of the Aggravating Circumstances,  unless the Athlete  or other Person  can establish that he or she did not kn owingly comm it the anti -doping rule violation.