Daniel Dubois is already being touted for his next fight after beating Anthony Joshua.
A.J. stunned Four A brutal right hand in the fifth round closed the show in front of a British record 98,000 at Wembley.
And the quickest to react to this was 6ft 8in giant Chinese star Zhilei Zhang – who called Dubois straight away.
He said: “Congratulations, Daniel. Nice win, I’m happy for you but what if…”
Zhang then pointed at the camera and at himself, appearing to challenge DuBois to a face-to-face meeting, before making a phone call.

The 41-year-old lost a controversial decision to Filip Hrgovic in August 2022 but has since picked up three wins.
He beat 39-year-old Joe Joyce twice, then lost to 32-year-old Joseph Parker.
But Zhang picked up a win over 38-year-old Deontay Wilder in June.
After the win, his manager, Terry Lane, claimed that “It’s boxing’s worst-kept secret that AJ wants nothing to do with Xhile.”
Dubois, 27, defeated Hrgovic, 32, to regain the interim IBF belt on the same night Zhang sent Wilder into retirement.
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But he was crowned champion after 37-year-old Oleksandr Usyk vacated a spot for a rematch with 37-year-old Tyson Fury on Dec. 21.
Dubois defended it vigorously against Joshua, and the two are now contractually set to have a rematch.

This comes after A.J.’s statement ruling out any possibility of retirement.