Athletes donating brains for injury study
Since his college days, New England Revolution forward Taylor Twellman has had seven diagnosed concussions. Given all the headers and hits over his career, he's wondering if that number might be drastically higher.
Twellman still deals with the effects of a concussion he sustained during a collision with a goalkeeper two years ago, one that possibly cost him a shot at making the U.S. World Cup team and cut short his 2010 season after going on injured reserve in late June.
Now he's ...
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