In the North American Soccer League's glory days, more than 20 teams played in cities across this land and Canada.

在北美足球联盟的曾经的红火日子里，有20支球队在遍布美国和加拿大的城市比赛。

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Vancouver, the western Canada city which will play host to next year's Winter Olympics, will be home to a Major league Soccer expansion team starting in 2011, the US-based league said on Wednesday.

温哥华，加拿大西部城市将主办明年的冬季奥运会，将家里的足球大联盟球队扩大从2011年起，在美国的联盟在星期三说。

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The league is partly financed by the U.S. Soccer Federation, along with the Canada and Mexico soccer federations, which will pay some of the salaries.

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Headquartered in New York City, Major League Soccer is the top-flight professional soccer league in the United States and Canada.

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Dr Scott Delaney, research director of emergency medicine at McGill University Health Center in Montreal, Canada, has also researched soccer-related head injury and agrees that head-to-head or elbow-to-head blows are the real risk.

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