- Name: Sean O'Brien
- Amateur MMA Record: 4-0-0 (Win-Loss-Draw)
- Nickname: N/A
- Current Streak: 4 Wins
- Age & Date of Birth: N/A
- Last Fight: May 20, 2017 in GTFPL
- Weight Class: Middleweight | Last Weigh-In: N/A
- Affiliation: Next Generation I.M.M.A
- Height: N/A | Reach: N/A
- Career Disclosed Earnings: $0 USD
- Born: Northern Ireland
- Fighting out of: Northern Ireland
Regional Rankings Rankings FAQ
Sean O'Brien is ineligible for regional rankings due to inactivity.
Fighters must have at least one completed MMA bout in the past two years to be ranked.