(a) When a player has a blood injury , which has uncontrolled active bleeding (a blood injury), that player may be temporarily replaced. The injured player must return to play as soon as the bleeding has been controlled and/or covered. If the player who has been temporarily replaced is not available to return to the field of play within 15 minutes (actual time) of leaving the playing area , the replacement becomes permanent and the replaced player must not return to the field of play.
(b) In international matches , the Match Day Doctor shall decide whether an injury is a blood injury necessitating a temporary replacement.
(c) Minor cuts and abrasions not constituting a blood injury should be treated during stoppages in play for other reasons.
(d) If the temporary replacement is injured , that player may also be replaced.
(e) If the temporary replacement is sent off for foul play , the replaced player may not return to the field of play.
(f) If the temporary replacement is cautioned and temporarily suspended , the replaced player may not return to the field of play until after the period of suspension.