Click on the video player above&nbsp; to watch the IAAF Diamond League's&nbsp;track and field event in Birmingham, England.

Despite Coleman's withdrawal, De Grasse must maintain top form at Diamond League

Andre De Grasse must keep focus even with the absence of Christian Coleman, who pulled out of the 100-metre race Friday ahead of the Müller Grand Prix Diamond League track and field event on Sunday in Birmingham, U.K. (CBCSports.ca, 9 a.m. ET).

Canada's Andre De Grasse finished ahead of Christian Coleman of the United States to win the 200 metres at the Ostrava Golden Spike meet on June 20. This Sunday in Birmingham, U.K., their head-to-head 100m showdown was scuffled when Coleman pulled out with injury.

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Brown claims 2nd Canadian 100m title with photo finish win over De Grasse

Aaron Brown edged Andre De Grasse to capture his second consecutive 100-metre title at the Canadian championships on Friday night.

Aaron Brown edges out Andre De Grasse to win the gold medal in the men's 100-metre final at the Canadian championships in Montreal on Friday.

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The world's best track and field athletes compete in Birmingham, England.

Watch the Diamond League track & field event in Birmingham

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