ESSENDON players and the Australian Sports Anti-Doping Authority have finished making submissions on what evidence can be presented at the AFL Anti-Doping Tribunal.
The parties concluded their submissions on Tuesday when the hearing convened for an 11th day at the Victorian County Court.
In December, ASADA lost a legal battle to have two of its key witnesses, biochemist Shane Charter and compound pharmacist Nima Alavi, testify at the hearing.
Charter and Alavi have given evidence to ASADA but refused to sign sworn affidavits backing the authority's allegations that the players were administered the banned drug thymosin beta-4 as part of Essendon's 2012 supplements program.
Lawyers for the players are arguing the players were given a legal version of thymosin - thymosin alpha-1 or thymomodulin.
The Tribunal has heard opening submissions from ASADA and the current and former Essendon players who have been issued with infraction notices.
Both sides have called on medical specialists through the hearing to give evidence.
The hearing is being held in private at the Victorian County Court after a ruling by Tribunal chairman David Jones on December 8 last year.
The hearing will continue on Wednesday.