Breaking news: The Showtime card headlined by Gary Russell Jr.'s featherweight title defense against interim titlist and mandatory challenger Oscar Escandon, originally scheduled for Saturday but postponed because Escandon hurt his back training, has been rescheduled for May 27, according to a source involved in the event. The co-feature of junior middleweight titlist Jermell Charlo's mandatory defense against Charles Hatley, also postponed because of Escandon's injury, will also move to the new date with both fights airing on Showtime and still taking place at the new MGM National Harbor in Oxon Hill, Maryland, according to the source.