A Showtime Championship Boxing doubleheader featuring world champion Jhonny Gonzalez (57-8, 48 KOs) in a featherweight showdown against top contender Gary Russell Jr. (25-1, 14 KOs), plus, super welterweight contenders Jermell Charlo (25-0, 11 KOs) and Vanes Martirosyan (35-1-1, 21 KOs) in a 154-pound matchup. Live from The Pearl Theater at Palms Casino Resort, Las Vegas.