I honestly don't think Fallon will play a minute, but I do think its important that he's part of the playing group and not the staff. In any other games this would be a silly selection but I think in the locker room, the training pitch and the team morale he'll bring alot to the team. Think it would be different if he was outside the team.
For these two one off games, he will be more valuable than Boyd not getting minutes.