By Emmett Berg SAN FRANCISCO (Reuters) - A man who requested a late-night ride from the ridesharing service Uber in San Francisco over the weekend was robbed by a driver, who refused to let him leave, then chased and assaulted him before taking his cell phone and debit card, police said. "This man called an Uber, it's not fair to say he got into one," she said. Asked if the rider's Uber request had been validated by any Uber driver, Downed declined to comment, citing the police investigation. The man, who was in his 30s and not named, was visiting the city's Marina District and ordered a ride through the Uber app around 1 a.m. local time on Saturday, San Francisco Police Department spokesperson Officer Carlos Manfredi said on Monday.

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