If you look at these three corrections, they all had a sharply lower weekly close near the highs (red candle), which was an early warning sign.

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Boston Red Sox right fielder Jackie Jensen had achieved career highs in six key offensive categories and had even accumulated better numbers than Mantle in Games Played, At Bats and Runs Batted In.

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As the red dashed line indicates, the decline held above the April 2010 highs as this former resistance became support.

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