George Steinbrenner - the legendary owner of the New York Yankees - has died, RadarOnline.com has learned.
Steinbrenner died at about 6:30 a.m. ET Tuesday after suffering a massive heart attack in Tampa, Florida.
Steinbrenner turned 80 on July 4th.
During Steinbrenner's ownership, the Yankees have won 11 pennants and seven World Series.
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