![Looking back on the Cardinals Marco Gonzales-Tyler O'Neill trade](https://sports.mynorthwest.com/wp-content/uploads/2017/07/Gonzales-620.jpg)
Mariners trade prospect Tyler O'Neill to Cardinals for LHP Marco Gonzales - Seattle Sports
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2018 NL Central Preview: St. Louis Cardinals - Brew Crew Ball
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Get to know Marco Gonzales, the Mariners' newest pitcher - Lookout Landing
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Maple Ridge's Tyler O'Neill reunited with Stubby Clapp after M's-Cardinals trade
![Looking back on the Cardinals Marco Gonzales-Tyler O'Neill trade](https://images.seattletimes.com/wp-content/uploads/2017/07/07212017_Marco-Gonzales_100826_tzr.jpg?d=780x501)
Mariners acquire lefty Marco Gonzales from Cardinals for outfielder Tyler O'Neill
![Looking back on the Cardinals Marco Gonzales-Tyler O'Neill trade](https://img.mlbstatic.com/mlb-images/image/private/t_16x9/t_w1024/mlb/i5ylfz8nmnaa3t3qplvr)
Adam Wainwright, Tyler O'Neill help Cardinals end skid
![Looking back on the Cardinals Marco Gonzales-Tyler O'Neill trade](https://cardinalsnation247online.files.wordpress.com/2019/01/img_6951.jpg)
St. Louis Cardinals: What to do with Tyler O'Neill – Cardinals Nation 24/7
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Briefly Scouting Tyler O'Neill - Viva El Birdos
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Getting to Know: Marco Gonzales, by Mariners PR
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Cardinals acquire Mariners top prospect Tyler O'Neill for Marco Gonzales
![Looking back on the Cardinals Marco Gonzales-Tyler O'Neill trade](https://bloximages.newyork1.vip.townnews.com/stltoday.com/content/tncms/assets/v3/editorial/7/de/7de46b86-e07c-11ed-a0f9-4b68b1aa3593/64432fba18b88.preview.jpg?crop=1753%2C920%2C0%2C130&resize=1200%2C630&order=crop%2Cresize)
One-time Mariners prospect Tyler O'Neill's trade to Cardinals was 'wakeup call' for him
![Looking back on the Cardinals Marco Gonzales-Tyler O'Neill trade](https://a.espncdn.com/photo/2014/0630/fan_a_gonzales_d1_1296x729.jpg)
Seattle Mariners send top prospect Tyler O'Neill to St. Louis Cardinals for Marco Gonzales - ESPN
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With Marco Gonzales, an unpopular trade is paying off in Seattle
![Looking back on the Cardinals Marco Gonzales-Tyler O'Neill trade](https://cdn.vox-cdn.com/thumbor/mNnYGb0wKQVHJpdJ_svwFIOWfg4=/0x0:3090x2060/1200x800/filters:focal(1742x287:2236x781)/cdn.vox-cdn.com/uploads/chorus_image/image/55991069/457279760.0.jpg)
Observations from Marco Gonzales' second start - Lookout Landing
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Tyler O'Neill - Wikipedia