During action in the 10th minute, A11 is pushed, and as a result of the foul, falls to the ground. His head bumps the ground rather hard, and the nearby referee (from life experiences, not to a medical determination) determines that A11 was unconscious for about three seconds. Since it was such a brief interval, the coach and trainer are unaware of the loss of consciousness. Using the guidance in 188.8.131.52, A11 should be removed from the playing field (may be substituted for) to allow that team's (or any available) medical staff to conduct a full evaluation. If the medical staff clears A11 in accordance with their protocols, A11 may report to the scorekeeper to enter the game any any point in the second half.