The South African-born prop who won three caps for Scotland in 1998, helped out at scrummage practice yesterday.
Injuries, particularly to Tom Smith, have left McGeechan's squad short on front-row numbers, especially for a full scrummage session. Proudfoot has been in good form after returning to play in the Super 12 with the Bulls.
Proudfoot is on the verge of a return to Scotland via a deal with Glasgow. It is understood that a deal that will bring the player back to Scotland is close to completion.
Glenn Metcalfe played a full part in training after sustaining a shoulder knock while scoring a try against the Barbarians last week.