The Global Fight League's rollout of matchups for its inaugural season isn't exactly being met with positive reactions, especially the most recently confirmed bout between former UFC heavyweight champions Frank Mir and Fabrício Werdum.

This year, the GFL is set to stage events for the first time, as the new organization targets success in mixed martial arts with a team-based format. 15 shows are apparently lined up until August, before a pair of playoff cards and one final event goes down at the end of 2025.

Following the announcement of Chris Weidman vs. Luke Rockhold 2, the GFL caused a stir by revealing the return matchup for a well past his prime Maurício "Shogun" Rua, who will face the powerful Yoel Romero.

And more matchups driving further "Grandad Fight League" jokes among fans look to be on the way, starting with a heavyweight clash between 45-year-old Team Los Angeles representative Mir and 47-year-old Werdum, of Team São Paulo.

The Brazilian's inclusion marks one of many concerns highlighted by the MMA community. Werdum and fellow GFL signing Wanderlei Silva both cited irreversible brain damage in their statements for the now-settled antitrust lawsuit against the UFC.

That was pointed out by some fans while reacting to his first fight since a 2023 decision loss to Junior dos Santos under the Gamebred Bareknuckle MMA banner. Mir, meanwhile, hasn't fought in MMA since 2019 and lost both his professional boxing debut and Triad Combat bout 2021.