Former welterweight titlist Andre Berto, who suffered his first defeat on April 16, will return to challenge titleholder Jan Zaveck of Slovenia on Sept. 3 in an HBO main event, Berto promoter Lou DiBella told ESPN.com on Thursday. DiBella said he had a deal with Berto, 27, and had also made a deal with Zaveck's team for him to come to the United States to fight for the first time. In one of the most action-packed fights of the year, Berto lost his version of the 147-pound title by unanimous decision to Victor Ortiz -- who parlayed the win into a big-money pay-per-view fight against Floyd Mayweather on Sept. 17 -- in a tremendous action fight Read more: http://sports.espn.go.com/sports/boxing/news/story?id=6747449