Not to be outdone , O'Reilly responded with some hard shots of his own .
O'Reilly seemed too tired to mount a sustained offense , and Grujic sealed the round by taking O'Reilly down and seizing back mount just before the horn .
Not to be outdone , O'Reilly responded with some hard shots of his own , but he seemed too tired to mount a sustained offense , and Grujic sealed the round by taking him down and seizing back mount just before the horn .