[citation needed] In June 2015, UK Athletics told Jeska that she would be required to provide blood tests to prove that her hormone levels were within normal female range.
[7] In March 2016 she attacked Ralph Knibbs, a former professional rugby player and UK Athletics HR manager, with a knife at Alexander Stadium in Birmingham.
Jeska stabbed Knibbs in the head and neck several times: one 2 cm (0.8 in) laceration caused life-threatening blood loss and permanent nerve damage.
[7] In September 2016, Jeska pleaded guilty to attempted murder plus two counts of assault occasioning actual bodily harm on Begley and Taylor, and weapons charges for knife possession.
[10][11] In March 2017, Jeska was jailed for 18 years for the crimes, which severed nerves in Knibbs's body, leaving him with restricted movement, difficulty eating, and limited vision in both eyes.