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.
'I made a mistake': Hinkley takes blame after Port's captain call backfires
Ken Hinkley has placed the blame on himself and says it was a mistake to play Connor Rozee after he entered the Showdown with questions over his fitness
Three in a row: Crows reign supreme in gutsy Showdown win
Adelaide led from start to finish in its 30-point Showdown 55 win over Port Adelaide
Fantasy
Fantasy
LISTEN: Who to hold or fold, captains, news, more
Tune in for the latest Fantasy news with The Traders
Ooh aah, six years for McGrath: Top pick sticks with Dons
Essendon has secured vice-captain Andrew McGrath till the end of 2030