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2016 - Chris Davis, Orioles 7 years, $161 million

Last season, the 32-year-old Davis had one of the worst seasons of anyone's lifetime. In 522 plate appearances, he batted an atrocious .168. According to CBS Sports, it was the lowest batting average for someone who qualified for the batting title in league history. A former two-time league leader in home runs, he belted just 16 last season. Davis has hit just .202 since signing his mega-deal.