Devon Alexander is an American professional boxer. He is a former world champion in two weight classes, having held the unified WBC and IBF light welterweight titles in 2010, and the IBF welterweight title from 2012 to 2013. Alexander was prescribed Tramadol after surgery in 2012, and thereafter had to battle opiate addiction, coming clean in 2018.

Andriy Mykolayovich Kotelnyk, best known by the Germanicised name Andreas Kotelnik, is a Ukrainian former professional boxer who competed between 2000 and 2014, and held the WBA super-lightweight title from 2008 to 2009. As an amateur boxer, he won a silver medal in the lightweight division at the 2000 Olympics.