Remember the rumours that Bakole, Price and Dubois had dropped AJ in sparring lmao. They may have, but they'd get comprehensively demolished in a real set-to.
Fury at 300 lb was outboxing and humiliating Joyce in sparring so i can imagine he knocked him out / down at 260.
He probably did level him but sparring JJ doesn't seem like the best choice if you're fighting Wilder
Sparring means absolutely naff all. All this proves is that Fury is getting some good sparring in and training is going well. A knock out only matters if a fighter has been knocked out in sparring and is due to fight in 2 weeks time or less. Then the fight under BBBoC rules should be delayed for medical reasons. A recent example of this was Chisora knocking Browne out cold in sparring only 7-8 days before his fight with Whyte. He was out cold before he hit the canvas against Whyte because he hadn’t recovered from the Chisora knock out in North London.