Business Insider -
20 Apr 2016 17:26

Eric Jamison/AP UFC superstar Conor McGregor caused a stir in the sports world on Tuesday when he tweeted out of the blue that he was retiring. The reaction was mixed. On one hand, McGregor is just 27, perhaps the second most popular fighter in the world, next to Ronda Rousey, and he was booked for the huge UFC 200 fight in July in a rematch against Nate Diaz, the only fighter to beat him in the last two years. However, McGregor also expressed sorrow after fellow fighter Joao Carvalho died fro...
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