Pro Low-Kick Rules Cruiser Heavyweight World Championship on 9 March 2013 in Monte Carlo, Monaco, losing the fight by split decision.
[7] Papin was scheduled to face Willbeforce Shihepo for the vacant IBF International Cruiserweight title on June 23, 2018, at the Floyd Mayweather Boxing Academy in Zhukovka, Russia.
[9] A year later, on June 16, 2019, Papin was scheduled to fight Alexandru Jur for the IBF International Cruiserweight title, which Papain had in the meantime vacated.
[12] The fight was confirmed fort the undercard of the Sergey Kovalev versus Anthony Yarde light heavyweight clash, which was scheduled for August 24, 2019, at the Traktor Ice Arena in Chelyabinsk, Russia.
Fayfer appeared up on the scorecards by the time of the stoppage, successfully scoring points from the outside and evading or blocking most of Papin's strikes.
[16] Papin was scheduled to face Vaclav Pejsar on April 2, 2021, at the Soviet Wings Sport Palace in Moscow, Russia, in a stay-busy fight.
[18] Papin was booked to face the one-time WBO world cruiserweight title challenger Dilan Prašović on May 27, 2022, at the Avangard Ice Hockey Academy in Omsk, Russia.
[24] Nnamdi was unable to fly to Russia due to problems with documents and was replaced by Igor Vilchitskiy, who stepped in on a day's notice.