Joe Rogan has raised concerns about Alex Pereira's transition to the heavyweight division as he prepares to face Ciryl Gane on June 14. Pereira, who has quickly ascended to become a two-division champion, is now aiming to make history by becoming the first fighter to hold titles in three different weight classes. However, Rogan warns that moving up to heavyweight presents unique challenges, particularly regarding grappling and wrestling defense. He notes that Pereira's weight has increased significantly to 250 pounds, which could affect his speed and agility in the octagon. The fight against Gane is expected to remain primarily striking-focused, but if Pereira wins, he would likely face Tom Aspinall in a unification bout, raising further questions about his ability to defend against larger opponents. Aspinall is currently recovering from eye surgery following a previous bout with Gane that ended controversially due to eye pokes.