Nigeria, July 26 -- Anthony Joshua produced a breathtaking comeback to stop Kristian Prenga by knockout in the second round on Saturday night, overcoming an early scare to move within touching distance of a long-awaited heavyweight showdown with Tyson Fury.

The former two-time world heavyweight champion endured a nightmare start as the aggressive Albanian challenger stormed out of the blocks, rocking Joshua with a series of heavy punches in the opening round.

Prenga's explosive start stunned the crowd as he floored Joshua twice, threatening one of the biggest upsets of the year and leaving the British-Nigerian star facing serious adversity.

But champions are often defined by their response under pressure.

Joshua quickly regained his c...