They appeared to be in different weight classes Saturday, too, as Zhang outweighed Wilder by 68.2 pounds — at 282.8 compared with Wilder’s 214.6. There is no weight limit in boxing’s heavyweight division.

Zhang used that size advantage to bully Wilder and smother him on the ropes. A southpaw, Zhang was able to connect with right hooks that scored time and again as Wilder cocked his vaunted right hand back but rarely let it go.

In Round 5, Zhang finally began to unload his best weapon. Wilder had just scored with a chopping right hand when he threw yet another right that was countered by Zhang for the finish.

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The victory made it a clean sweep for Frank Warren’s Queensberry Promotions, which was squaring off with rival U.K. promoter Eddie Hearn’s Matchroom Boxing in a unique 5 vs. 5 team concept created by Turki Alalshikh, the chairman of Saudi Arabia’s General Entertainment Authority.

After Zhang’s TKO win, Alalshikh presented Warren with a large check worth $3 million.