Both players participated fully in the lengthy match simulation session at Patersons Stadium.
More than half of the squad were involved in the full ground session and AFL umpire Luke Farmer officiated proceedings in conjunction with Simpson's instructions.
There was an injury scare for defender Will Schofield when he appeared to tweak his right ankle when tackled from behind. He left the track immediately after the incident but the injury is understood to be minor.
Injured trio Jack Darling (foot), Scott Selwood (ankle) and Mark Hutchings (groin) appeared briefly at the start of the two-and-a-half-hour session to participate in handball drills before heading back to the rooms.
Jeremy McGovern (hip), Xavier Ellis (AC joint), Murray Newman (knee) and Jamie Bennell (hamstring) all participated in running away from the main group before joining draftees Damien Cavka and Jackson Nelson in some ball movement drills at the end of training.
Cavka, Nelson, Tom Lamb and Alec Waterman were on lighter duties.
Check out all the latest trade news from around the League
AFL to take a stand on violence against women
The AFL industry will pay tribute to the women who have lost their lives to gender-based violence ahead of all nine matches this weekend
AFL clubs unite together against gender-based violence
The AFL industry will come together as a collective voice across this weekend’s round of matches to stand against the national crisis of gender-based violence in Australia