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St. Louis Cardinals snag Tyler O'Neill from Seattle Mariners for
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MLB Trade Deadline Recap: St. Louis Cardinals - MLB Daily Dish
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St. Louis Cardinals: Looking at the trade for Tyler O'Neill
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Who is Tyler O'Neill? - Viva El Birdos
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Getting to Know: Marco Gonzales, by Mariners PR
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Law: Cardinals get a slight edge in rare prospect-for-prospect
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The Mariners and Cardinals make a minor trade - NBC Sports
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Mariners acquire lefty Marco Gonzales from Cardinals for
![Looking back on the Cardinals Marco Gonzales-Tyler O'Neill trade](https://images2.minutemediacdn.com/image/upload/c_fill,w_720,ar_16:9,f_auto,q_auto,g_auto/shape/cover/sport/https-3A-2F-2Fsodomojo-com-2Fwp-content-2Fuploads-2Fgetty-images-2F2017-2F07-2F1153330537-850x560-f7b04921df6c98da5b52574487913a39.jpg)
Mariners Rumors: Cardinals open to trading Carlos Martinez, young
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Cardinals rookie O'Neill is riding a three-game homer streak
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Former Gonzaga pitcher Marco Gonzales is a big reason the Mariners