Anthony Joshua has zero recollection of the disastrous 3rd rd. of his Andy Ruiz fight ... where he was pummeled and knocked down twice -- this according to his promoter Eddie Hearn.
Joshua was a massive favorite in the fight against Ruiz ... but was stopped in the 7th round in one of the most shocking upsets in boxing history.
Hearn sat down on DAZN and opened up about the fight and revealed Joshua legit doesn't recall the beat down he took in the 3rd round.