Allen shows how Usyk hurt him in sparring

British heavyweight David Allen (18-5-2, 15 KOs), who yesterday announced his retirement because he "did not want to receive more punches in the face", posted on social media a video of his October sparring with  Alexander Usyk (18-0, 13 KOs).

The video shows Allen staggering after being hit by the Ukrainian left and on the verge of a knockout, but the former cruiserweight king gave him time to recover.

"White Rhino" revealed that the incident he showed was one of the reasons for him that made him hang up his gloves.