Click to enlarge, and debate the strip below the line.

Keith Hackett's verdict

1) There is no way he can play wearing that sort of equipment. It is not a question of whether or not he is medically fit to play – that is not your call. It's about whether the item represents a danger to himself or his opponents. This sort of collar clearly falls into the same category as snoods, which were outlawed last year because of the risk of them being caught as players run. Tell the player and his manager that the collar must be removed, and remind the player that, if he continues without it, he does so at his own risk. Thanks to Richard Collins.

2) The player has saved himself from a red card, but has cost his team a goal. Had he not thrown it into the net then clearly you would have dismissed him and awarded a penalty. As it is, show him a yellow card for unsporting behaviour and award the goal. Thanks to Phillip Mercer.

3) Your first priority, of course, is to get the medical staff on to see to the injured player, and to make sure he leaves the pitch until the bleeding has stopped. As for the striker: his action was careless rather than reckless, and there was no malice, so there is no reason to show him a second yellow card. Restart with a direct free-kick. Peter Little wins the shirt.

Competition: win an official club shirt of your choice

View the Kitbag range

For a chance to win a club shirt of your choice from the range at Kitbag.com send us your questions for You are the Ref to you.are.the.ref@observer.co.uk. The best scenario used in the new YATR strip each Sunday wins a shirt to the value of £50 from Kitbag. Terms & conditions apply.

For more on the fifty year history of You Are The Ref, click here.