Floyd Mayweather Jr. is thisclose to naming a foe for his May 5 scrap.
Mayweather advisor Leonard Ellerbe had said the tussle could be announced later this week.
The 28-year-old Guerrero, a California-based boxer seen as one of the classiest battlers in the sport, has a 29-1-1 record. The left-hander has been off since April 2011, because of a left shoulder injury, which necessitated surgery. The ex-featherweight, super feather and lightweight champion has never weighed more than 138 pounds as a pro at a weigh-in, so he'll be biting off a hunk of challenge in the pound-for-pound king, who has campaigned at 140 pounds or more since 2004. The May 5 date, tied to the Cinco de Mayo weekend, would likely draw a solid crowd, as the Mexican-American Guerrero has a solid fanbase.
The 34-year-old Mayweather is looking to get a fight in and raise his record to 43-0 before he turns himself in for a no-more-than three months jail sentence. That term, set to start June 1, stems from a 2010 altercation with his ex-galpal in Las Vegas in September 2010.