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CJ2K earned the nickname when he rushed for over 2,000 yards in 2009. In 2010, he faced a lot of stacked boxes, but still managed to rush for nearly 1,400 yards.
This season, he may not break 1,000. As of right now, Johnson has 986 rushing yards and a miserable four touchdowns. Four. This is after a holdout that extended even after the Titans' general manager Mike Reinfeldt publicly stated that they were willing to make Johnson the highest-paid player at his position.
In the end, Chris Johnson got a contract worth over $50 million, and the Titans got the last-ranked rush attack in the NFL for most of the season.
It didn't help that Johnson just looked out of shape for the first half of the season. It doesn't exactly speak well for his work ethic in the offseason.