On 19 June, Jack revealed that his team were working towards a deal for him to fight WBA (Regular) champion Nathan Cleverly. He expected when the fight gets announced, it would be on the undercard of Floyd Mayweather Jr. vs. Conor McGregor in Las Vegas on 26 August 2017. Jack's light heavyweight goal was to challenge WBC champion Adonis Stevenson, after Cleverly. On 19 July, according to sources, a deal was being close to being agreed from sides. On 27 July, the WBA ordered Cleverly to fight undefeated WBA interim champion Dmitry Bivol (11–0, 9 KOs), which would eventually establish a mandatory challenger for WBA (Super) champion Andre Ward.