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In 2008, Cleveland Browns linebacker D'Qwell Jackson recorded 95 tackles, a career high to that point, and he was poised to become one of the better young linebackers in the game. Then disaster struck. Jackson tore his left pectoral just six games into the 2009 campaign, causing him to miss the remainder of the season. After rehabbing his way back, Jackson tore his right pectoral muscle in training camp the following season, causing him to miss the entire year. Fortunately, there was no third pectoral for Jackson to tear, and he's remained injury-free since.
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