spar

Two rhinos – Astrid and her son Tayo – were sparring with one another, described by the zoo as "regular and natural behaviour" for the species.

“He wants to train – He actually wants to get in the cage and fight. He said, ‘I’d love for you to come down and spar if we can.’”

Samuel Hammond, an economist at the anti-regulation Foundation for American Innovation, told the Washington Post that the spar was “a sign of future conflicts.”

Davison also oversaw the return of Tyson Fury - who Itauma has sparred on several occasions - after a hiatus from the sport.

After such long, arduous careers - the gruelling training camps, emotional and mental turmoil, damage suffered in sparring and on fight nights - they were still able to create a masterpiece.