SHOWTIME Sports® will present a fight card from Mexico for the first time in nearly 12 years when devastating, undefeated knockout artist and two-time world champion Edwin Valero (26-0, 26 KOs), of Las Vegas, Nev., by way of Merida, Venezuela, defends his World Boxing Council (WBC) lightweight crown against streaking, once-beaten WBC 135-pound interim titleholder [...]