You can reserve a player that gets injured and is listed as day-to-day but isn't placed on a major league DL, so I'd think getting suspended would fit in the same line of thinking. I thought the general thinking was that it's OK to make changes during the week due to a change in the player's status with their team (getting hurt and missing a few games, getting benched, etc.); getting suspended seems to me to be in the same spirit. So my thinking is that he'd be allowed to move Manny to his reserve list, just not the DL.