Photo: Jorge Arce (far right) helps groom Giovanni Segura while Ivan Calderon (far left) and co-promoter Peter Rivera look on. The foursome were part of a press conference hosted today by Top Rank at the Mandalay Bay’s Lupo Traittoria Del Wolfgang Puck in Las Vegas. Bob Arum officially announced several upcoming bouts, including Arce’s showdown with WBO jr. featherweight champ Wilfredo Vazquez, Jr. and the rematch between Urbano Antillon and Humberto Soto, both of which will be featured on the May 7 Pacquiao-Mosley card. Arum also announced Calderon’s rematch with Segura, April 2 in Puerto Rico. Stay tuned for a full report and more photos.