FUT Player Days event is available from 8th to 12th of March 2021 (6pm UK) in FIFA 21 featuring special pack offers, availability of previous inform player cards in the packs, special Objectives and SBCs.
Here is the list of available content during this event:
There will be a free gift pack (untradeable) given to FUT users during the FUT Player Days promo event. The type of this pack depends on your tier which is used on the number of days you logged in to FUT since launch. All you need to do in order to redeem this pack is to login to FUT and accept the gift.