Every baseball season has its surprises. Whether it’s rookies emerging into stars, stars playing like duds or earth-shattering injuries, a baseball season always throws fans a curveball.

In 2013, fans have witnessed a wide array of surprises. Jose Fernandez and Yasiel Puig have not only made it to the major leagues sooner than expected, but have also emerged as legitimate stars for the Miami Marlins and Los Angeles Dodgers, respectively. And while the Toronto Blue Jays have fell flat despite lofty expectations, the Pittsburgh Pirates will likely make their first playoff appearance since 1992.

Read on to see the eight biggest surprises of the 2013 MLB season.


All statistics (through September 14) sourced from Baseball-Reference.com and FanGraphs.com.

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