By Edward Chaykovsky

Former WBO cruiserweight champion Enzo Maccarinelli (41-7, 33KOs) displayed last Saturday night why he's still a very dangerous fighter.

Headlining an even in Moscow, Maccarinelli knocked out four division world champion Roy Jones Jr. (62-9).

The knocked was brutal, as Jones was knocked out cold and fell face-first to mat. The referee immediately waved of the fight.

Since the loss, fans have been pleading with the 46-year-old fighter to walk away from the ring.

Jones has given no indication that he plans to retire after suffering this crushing defeat.

Maccarinelli, at only 35-years-old, has also been advised to retire in the past after suffering some bruising knockout defeats of his own.

He understands why Jones might want to continue.

"We had a chat afterwards and he said some amazing things. That is the way it is in boxing. There should always be respect between fighters," Maccarinelli told the South Wales Post.

"It's not my place to advise, Roy. He probably wants to go out with a win and I can understand that. It's something every fighter would want. People are saying negative things about him but he can still throw a punch. It's up to him when he bows out, really."