Justin Gaethje retired on Saturday when he defeated Edson Barboza in the highly anticipated UFC lightweight headliner at ESPN 2. Octagon wins for the first time as he beats Barboza (20-7 MMA, 14-7 UFC) in the eighth round of the ESPN defeated in the main ESPN competition at the Wells Fargo Center in Philadelphia.
See below for Twitter's top response to Gaethje's win over Barboza at UFC on ESPN 2.
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