According to a Major League source, Jason Varitek, long defined by his leadership and toughness, is expected to announce his retirement on Thursday, making him that rare player in this era who spent his entire career with one team.
In Varitek's case, he did it for the tradition-laden Boston Red Sox, helping the franchise snap an 86-year World Series championship drought in the process.
Not only was Varitek a vital force for the historic 2004 Red Sox, but he again helped lead the charge when Boston won it all again in '07.
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