* Resignation comes after U.S., Swiss corruption probes
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- Reaction to resignation of FIFA chief Blatter Reuters
- Blatter says he will resign as FIFA president The Associated Press
* FIFA needs profound restructuring - Blatter
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By Brian Homewood
ZURICH/NEW YORK, June 2 (Reuters) - Sepp Blatter rocked the world of soccer on Tuesday by saying he would step down as FIFA president in the wake of a corruption investigation that now includes the 79-year-old chief himself.