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Masahiro Tanka rookie cards are getting a lot of attention from collectors this month.  Many people don't even know he actually has few rookie cards that were issued in 2009.  The WBC rookie cards of Tanka are currently his most popular cards.  With teams like the Yankees, Red Sox, Cubs, and Dodgers bidding on this [...]Continue Reading

Shelby Miller rookie cards are some of the hottest baseball cards in the hobby.  Miller has been the lights-out starter the St. Louis Cardinals have been looking for.

Shelby Miller was selected in the first round of the 2009 MLB draft of the St. Louis Cardinals and the team always looked at him as [...]

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Viewed as arguably the top prospect in the 2012 draft, Buxton made the jump from high school to the pros after the Twins made him there #2 overall pick.  The 18-year-old played rookie ball in the Appalachian League and the Gulf Coast League in his first full season.  He hit 5 homers in 48 games.


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Chris Davis is this year’s comeback player of the year.  His numbers at the All-Star break are simply something you will only find in a video game.  Davis has 37 homers, 94 RBI and is hitting .312 and he is only a little more than half way through the young season.

These incredible numbers have [...]

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Jean Segura rookie cards are becoming hot commodities among collectors.  The Brewers young shortstop has a great year an is becoming a clear front runner for the NL Rookie of the Year award.

Jean Segura came to the Milwaukee Brewers in the trade that sent Zack Greinke to the Los Angeles Angels in Continue Reading

Sports card grading is a way to determine the authenticity and condition of a card.  The better the condition a sports card is in the harder it is to find. The better the condition the more the card is typically worth.

One of the most common questions we receive at GMA Grading is how do [...]

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The Rookie of the year award can have a dramatic effect on the value of a players rookie cards.  After the award winners are announced the demand for their rookie cards increase. This systematically causes the demand of their rookie cards to increase immediately.  Even though we are only half way through the season [...]

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