Watch the Diamond League track & field event in Doha
Click on the video player above to watch coverage from IAAF Diamond League track and field event in Doha.
Canada's Aaron Brown competes in the men's 200m and Caster Semenya of South Africa races in the women's 800m at the season-opening meet in Qatar.
For more track and field coverage, tune into Road to the Olympic Games Saturday at 4 p.m. ET.