I didn't realise until yesterday, that if a player continues to play on and score a goal, after the refs whistle has gone (for offside), it's now a booking. The player then picked up a second silly yellow in the second half, so had to walk. Can't wait for that to happen in the prem lol.
Think it always has been but rarely enforced. Remember Van Persie being sent off in a big European away for Arsenal for it a million years ago. Loads of rules seem to be being inconsistently applied now. You get two identical halves with either three or ten mins added all because they won’t just book ****housing from the start.