Which fighter boxes like Anthony Joshua, grapples like Gordon Ryan?

[jackleeb]

#1 Boxer in the World = Anthony Joshua
#1 Grappler in the World = Gordon Ryan

Which fighter is closest in terms of combining both into MMA?

 

[flektarn]

#1 Boxer in the World = Anthony Joshua

Lost to a cruiserweight TWICE.
Stop the cap.

 

[jackleeb]

Lost to a cruiserweight TWICE.
Stop the cap.

Usyk has a 14 KO, 21 wins = 66.66% finish rate
AJ has a 25 KO, 28 wins = 89.28% finish rate

Usyk is more skillful than AJ, but AJ is scarier threat.
Also, Usyk got stopped by Dubois when the punch went below the "belt line". AJ has never been knocked out.