Sampson Lewkowicz (born January 10, 1951, in Montevideo) is an Uruguayan-American boxing promoter and manager, whose notable clients have included Sergio Martinez, Magomed Abdusalamov, Javier Fortuna, and Gabriel Campillo.
[1] Lewkowicz is also credited for having discovered Manny Pacquiao[2] prior to the Filipino fighter's arrival in the United States, and served as matchmaker for Sultan Ibragimov.
[3] Lewkowicz is the president of Sampson Boxing, a promotional and advising company for boxers.
Lewkowicz has gained notable recognition for his role as chief adviser to multi-division world champion Sergio Martinez.
[7] Lewkowicz is also the promoter of two-time super middleweight titlist, David Benavidez, Lewkowicz also manages unified Junior Middleweight world champion, Jeison Rosario.