Click to enlarge, and debate the strip below the line.
Keith Hackett's verdict
1) The goal stands. Before the player came back on to the pitch he will have had his boots checked by the fourth official, so you have to rely on your colleague's judgment. Players are not doing anything wrong by wearing mismatching boots, so long as they are legal and not in any way dangerous. Thanks to Luke Flanagan.
2) As tempted as you might be to award the goal, a penalty has to be taken by a previously identified member of the attacking team. So caution the defender for his act of dissent, try to calm him down and issue him with a firm warning about his future conduct. Have the ball returned to the spot, and the penalty taken in the usual way.
Alan Rhys-Thompson wins the shirt.
3) It's a goal. Law 5, bullet point 11, says that the referee "allows play to continue when the team against which an offence has been committed will benefit from such an advantage". This player was in an offside position through no fault of his own, and there's no exception mentioned in the Law for offside with regards to playing advantage. If defenders protest you can remind them that it was one of their players who pushed him into that position. Thanks to Jason Chau.
• This third answer was amended on 9 September 2015.
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