Mandalay Bay, Las Vegas - Top Rank held a presser announcing several upcoming bouts featuring fighters Ivan Calderon, Jorge Arce, Wilfredo Vazquez, Giovani Segura, Juan Manuel Lopez and Urbano Antillon. Calderon faces Segura in a rematch on April 2 in Mexico. Lopez defends his WBO featherweight title against Orlando Salido on April 16. WBO super bantamweight champ Wilfredo Vazquez Jr. and Jorge Arce collide on the May 7 Pacquiao-Mosley card in Las Vegas, and Urbano Antillon also appears on the card in a rematch with WBC lightweight champion Humberto Soto. Photos by Chris Cozzone/FightwireImages.com