The unbeaten Floyd Mayweather returns to the ring this weekend after a year's absence that included a jail term, risking his World Boxing Council welterweight title against fellow American Robert Guerrero.
Mayweather, who's won all 43 of his bouts including 26 knockouts, went to jail last June for domestic violence and, since his release eight months ago, has worked to regain his fitness.
Guerrero has a 15-fight win streak dating back to 2005 and sees an opportunity to humble Mayweather by inflicting the first loss of the champion's career.
