BJ Flores will be entering the last chance saloon when he faces unbeaten Swedish Heavyweight hope Otto Wallin on Friday night, live on BoxNation.
Flores, who is now 40-years-old, was a solid enough Cruiserweight and lost just once in his first 33 professional contests.
But after moving up in class he is 3-3 in his last six contests, but two of the defeats came in World Title challenges at Cruiserweight against Beibut Shumenov, who outpointed Flores, and Tony Bellew, who blew him aside in three rounds.
Eleven months ago, the Californian, who is a close friend of David Haye, lost in four rounds against Trevor Bryan in an Interim WBA Heavyweight Title fight.
Flores was on the brink of retiring, but decided to have one more crack when the call came to face Wallin in Tacoma, Washington.
Few will be expecting Flores - who made his professional debut more than 16 years ago - to upset Wallin in their fight that is broadcast coast-to-coast in the United States by Showtime on their ShoBox series.
Wallin is ranked at number five in the WBA and at 11 by the IBF for their belts worn by Mexican upsetter Andy Ruiz.
34-4-1 record holder Flores vowed: “This will be my first time fighting on Showtime and I plan on putting on a great show.
“Wallin is a good fighter. 6’6” and young, hungry, and undefeated. He isn’t 20-0 for no reason. I am greatly looking forward to this opportunity.”
He has been trained for the non-title 10-rounder by Ibn Carson, who works with Kubrat Pulev, and strength and conditioning coach Angel Heredia is also involved.
Flores added: “Ibn Cason and Angel Heredia will have me at the top of my game. Being in camp with world class Heavyweight Kubrat Pulev will also be an amazing experience. He is very good and there is a lot to learn from a guy like Kubrat.
“All these new additions to my team will help me surprise a lot of people.”