イゴール・ボブチャンチン
In 2001, Sperry debuted in Pride Fighting Championships, where the Brazilian Top Team was competing. His first match would be an important victory against Igor Vovchanchyn, who was taken down and submitted by arm triangle choke by the Brazilian fighter. He then went to fought Murilo Rua from Chute Boxe, a team that would get in a rivalry with BTT after this match. Beginning the fight, Rua landed multiple hits in Sperry both standing and on the ground, but the jiu-jitsu champion countered with a triangle armbar attempt and tried to get position; however, Rua escaped and landed more strikes, including a soccer kick to the face. At the second round, Sperry came near of the finish with a rolling kneebar and a Kimura lock, but Murilo was able to avoid them and threw several knees to the head. Finally, Rua punished Sperry for most of the third round for a unanimous decision.