![](https://i.dailymail.co.uk/1s/2020/04/28/18/27759528-8265721-image-a-37_1588094918676.jpg)
Orioles' Mancini, undergoing chemo, to sit out 2020
![Orioles' Mancini, undergoing chemo, to sit out 2020](https://wjla.com/resources/media/9374abf5-6a8a-4543-adea-17766374e503-large3x4_treymancini.png?1588105062764)
Orioles outfielder Trey Mancini, 28, reveals he has stage 3 colon cancer
![Orioles' Mancini, undergoing chemo, to sit out 2020](https://a2.espncdn.com/combiner/i?img=%2Fphoto%2F2020%2F1124%2Fr780184_1296x729_16%2D9.jpg)
What the NFL and MLB learned from a young Baltimore Ravens superfan - ESPN
![Orioles' Mancini, undergoing chemo, to sit out 2020](https://i.dailymail.co.uk/1s/2020/04/28/18/27759540-8265721-image-a-39_1588095174799.jpg)
Orioles' Mancini, undergoing chemo, to sit out 2020
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Trey Mancini beats cancer for triumphant return
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Baltimore Orioles Trey Mancini Discusses Cancer Diagnosis
![Orioles' Mancini, undergoing chemo, to sit out 2020](https://pressboxonline.com/wp-content/uploads/2019/11/orioles19-trey-mancini1.jpg)
Trey Mancini Leaves Orioles Camp For 'Non-Baseball' Medical Procedure - PressBox
![Orioles' Mancini, undergoing chemo, to sit out 2020](https://i.dailymail.co.uk/1s/2020/04/28/18/27759528-8265721-image-a-37_1588094918676.jpg)
Orioles' Mancini, undergoing chemo, to sit out 2020
Trey Mancini on 2022 Orioles and future with Baltimore
![Orioles' Mancini, undergoing chemo, to sit out 2020](https://i.dailymail.co.uk/1s/2020/09/22/17/33489162-8760625-image-m-24_1600793280761.jpg)
Orioles slugger Trey Mancini finishes his six-month chemo treatment following colon cancer surgery
![Orioles' Mancini, undergoing chemo, to sit out 2020](https://cdn.theathletic.com/app/uploads/2021/02/27175017/AP19169714281247-scaled.jpg)
Baseball, cancer, recovery: Trey Mancini — and those closest to him — tell his story of struggle and strength - The Athletic
![Orioles' Mancini, undergoing chemo, to sit out 2020](https://img.mlbstatic.com/mlb-images/image/upload/t_16x9/t_w372/mlb/qfddjkxnnybrwewnkaim.jpg)
Trey Mancini on watching Orioles Opening Day from home
![Orioles' Mancini, undergoing chemo, to sit out 2020](http://thumbor-prod-us-east-1.photo.aws.arc.pub/xHGSH2nLq5Ja5eY-OiRj9TFgclw=/arc-anglerfish-arc2-prod-tronc/public/6EDFPZ34DZAZHKMFT475JE7U3E.jpg)
Orioles' Trey Mancini had malignant tumor surgically removed; lab results and recovery timetable unknown