Free kick awarded to team A for a reckless challenge from a team B player. Team B player is injured and receives treatment. When can the team B player be cautioned? When they're on the floor (generally I see referees wait for players to stand up before showing a card)? Do you wait until the next stoppage if they've left FOP for more treatment? Also if a player was stretchered off? Do use a bit of empathy and not bother with the card? Can't seem to find an answer for this is in LOTG.