The key new rules for the Champions League and Europa League are as follows:
– Teams can have 12 substitutes at their disposal in the final.
– Teams can make a fourth substitute in the knockout rounds during extra-time.
– Clubs can register three new eligible players ‘without any restrictions’ after the group stages to allow for winter transfers.
– Champions League kick-offs will be at 20:00 GMT (15 minutes later than the current time of 19:45).