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San Francisco 49ers wide receiver Brandon Aiyuk was taken to the locker room after suffering what appeared to be a serious leg injury against the Kansas City Chiefs.
Aiyuk was left in visible pain after taking a brutal double tackle from two Chiefs defenders late in the first half.
As Trent McDuffie attempted to take him down from behind, Chamarri Conner flew at the 26-year-old with a strong challenge, his right leg appearing to bend awkwardly under the pressure.
More to follow.