THE AFRO — A damaging blow may have been dealt to major boxing matches coming to Maryland after the death of a fighter during a nationally televised card at MGM National Harbor.  Junior welterweight Maxim Dadashev died July 23 as a result of brain injuries suffered during an 11th-round knockout loss to Subriel Matias on an ESPN/Top Rank event in Oxon Hill. Dadashev was a 28-year old rising welterweight prospect who was reportedly “fighting for his green card” in hopes of bringing his family from Russia to the United States.  This was a 140-pound world title elimination fight for the right to become the mandatory challenger for the belt, which is currently held by Josh Taylor.