By Saúl Berríos-Thomas   The best rivalries in sports start off respectful, but quickly turn to resentful. What could become the best rivalry in boxing history added another chapter on Saturday. The main event on HBO “Boxing After Dark” was a junior welterweight clash. Brandon Rios (31-0-1, 22 KOs) faced Mike Alvarado (33-1, 23 KOs). This rivalry has been billed as the next Arturo Gatti … Continue reading Rios-Alvarado II The Beginning of A Legacy