San Francisco 49ers President and CEO Jed York, center, gestures as San Francisco police chief Greg Suhr, left, and Mayor Ed Lee, right, listen during a news conference at Candlestick Park in San ... more 
San Francisco 49ers President and CEO Jed York, center, gestures as San Francisco police chief Greg Suhr, left, and Mayor Ed Lee, right, listen during a news conference at Candlestick Park in San Francisco, Monday, Aug. 22, 2011. The 49ers announced they are banning tailgating in the parking lot of Candlestick Park after games start, and any season ticket holders caught misbehaving on video will have their tickets revoked. The moves announced Monday are in reaction to the violence that marred a weekend preseason NFL football game. In addition, York says he will recommend to the NFL that the annual preseason game between the archrival 49ers and Oakland Raiders be put off next year. (AP Photo/Eric Risberg) less 
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Associated Press | Photo By Eric Risberg
Mon, Aug 22, 2011 7:24 PM EDT