Bernard Hopkins vs. Sergey Kovalev, billed as Alien vs. Krusher, was a professional boxing match contested on November 8, 2014, for the WBA (super), WBO and IBF light heavyweight titles.

The deal came together at the behest of the IBF, who gave Hopkins a deadline to either except the unification fight with Kovalev or face their number-one ranked contender Nadjib Mohammedi.

[2] The deal was contingent on Kovalev first defeating Blake Caparello in a fight that was scheduled only two days after the agreement with Hopkins had been made.

[3] Prior to agreeing to face one another, both Hopkins and Kovalev had previously pursued a separate unification bout with Adonis Stevenson, who held the WBC's light heavyweight title and was regarded as the lineal champion, also holding The Ring light heavyweight title.

[4] Hopkins then expressed interest in a fight with Stevenson, calling him out after defeating Beibut Shumenov in April, but a deal was never reached.