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Rahal Letterman Lanigan Racing's driver Graham Rahal (Front) of the United States races during the practice session of the 2019 Honda Indy Toronto of the NTT IndyCar Series at Exhibition Place in Toronto, Canada, July 12, 2019. With 22 drivers from around the world, the three-day annual event kicked off here on Friday. (Xinhua/Zou Zheng)
