Tonight ESPN aired its "The Announcement" documentary. Even casual fans remember what they were doing and where they were when the news of Magic Johnson's HIV status and subsequent retirement first broke. He was already one of the greats and had at least another handful of years playing at the top of his game. But Magic's untimely retirement was not the first or last for pro sports stars.

From those who quit because of a lack of passion like Bjorn Borg or for a good cause like Pat Tillman, when these athletes hung it up everyone took notice. Do you remember where you were when Barry Sanders quit? How about Jim Brown? If so for Jim Brown then you're an AARP member and Complex reader, so props to you! Anyway, we'll refresh your memory as we take a look back at those unforgettable moments with the 10 Most Shocking Retirements in Sports History....

Tags: magic-johnson, the-announcement, espn, shocking-sports-retirements, michael-jordan, barry-sanders
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