![Diamondbacks' Gallen has sore forearm, might miss opener](https://images.seattletimes.com/wp-content/uploads/2021/03/urn-publicid-ap-org-88a37b6c88ff9a175ab1d5b9f6aa6936Athletic27s_Diamondbacks_Baseball_65080.jpg?d=2040x1360)
MadBum gets opening day start on mound for Diamondbacks
![Diamondbacks' Gallen has sore forearm, might miss opener](https://res.cloudinary.com/graham-media-group/image/upload/f_auto/q_auto/c_thumb,w_700/v1/media/gmg/UXWH5NSWIRFDLGZIWE2MWL5Y3E.jpg?_a=ATAPphC0)
Bryan_Abreu
![Diamondbacks' Gallen has sore forearm, might miss opener](https://res.cloudinary.com/graham-media-group/image/upload/f_auto/q_auto/c_scale,w_400/v1/media/gmg/O5LL344OKRHFBGMRRY6VA2HJUM.jpg?_a=AJFJtWIA)
Diamondbacks' Gallen has sore forearm, might miss opener
![Diamondbacks' Gallen has sore forearm, might miss opener](https://www.azcentral.com/gcdn/presto/2021/03/01/PPHX/6fede377-a782-48c3-9ecd-3bdf225c829c-cent02-7eptqq7lp113vhcwhle_original.jpg)
D-Backs' Zac Gallen out with hairline fracture in pitching arm
![Diamondbacks' Gallen has sore forearm, might miss opener](https://cdn.allcitynetwork.com/wp-content/uploads/sites/4/2023/07/31025123/USATSI_20303967-scaled-1.jpg)
Diamondbacks roster projection 3.0: Final Countdown Edition - PHNX
![Diamondbacks' Gallen has sore forearm, might miss opener](https://cdn.allcitynetwork.com/wp-content/uploads/sites/4/2023/07/30224307/USATSI_16880307_168383315_lowres-1-scaled.jpg)
D-backs are proceeding with caution when it comes to Zac Gallen
![Diamondbacks' Gallen has sore forearm, might miss opener](https://www.usatoday.com/gcdn/-mm-/2887f5d7d58a75a6437c45e987fd994202334aff/c=0-156-3000-1844/local/-/media/2021/03/23/USATODAY/usatsports/2db9ab5cdd934f47a66ad3c4fbef713f.jpg?width=3000&height=1688&fit=crop&format=pjpg&auto=webp)
Diamondbacks' Gallen has sore forearm, might miss opener
![Diamondbacks' Gallen has sore forearm, might miss opener](https://dims.apnews.com/dims4/default/201ef56/2147483647/strip/true/crop/8047x5360+0+2/resize/599x399!/quality/90/?url=https%3A%2F%2Fassets.apnews.com%2Fbb%2F88%2F86c51c491600f5a2562cdb8c8bfb%2F9a18346923124b28a07ca80c913da891)
D-backs pitcher Gallen has sore forearm, might miss opener
![Diamondbacks' Gallen has sore forearm, might miss opener](https://www.clickondetroit.com/resizer/_Le33aLC7V1tpuQvg8VpkpxyONg=/800x533/smart/filters:format(jpeg):strip_exif(true):strip_icc(true):no_upscale(true):quality(65)/cloudfront-us-east-1.images.arcpublishing.com/gmg/NKH3EBI2FVFP5E6ZAXVRGTPQNM.jpg)
Kole_Calhoun
![Diamondbacks' Gallen has sore forearm, might miss opener](http://blogs.fangraphs.com/wp-content/uploads/2023/05/USATSI_20624562.jpg)
Zac Gallen Is the Same as He Ever Was
![Diamondbacks' Gallen has sore forearm, might miss opener](https://cdn.mlbtraderumors.com/files/2021/04/zac-gallen-dbacks-1024x683.jpg)
Zac Gallen Questionable For Opening Day Due To Shoulder Issue
![Diamondbacks' Gallen has sore forearm, might miss opener](https://www.ksat.com/resizer/-FcPzzIhPMtg5Luzj-N3fZw-484=/arc-anglerfish-arc2-prod-gmg/public/HH5OXUIVNFATBEBED5CKZRBUBI.jpg)
Diamondbacks' Gallen has sore forearm, might miss opener
![Diamondbacks' Gallen has sore forearm, might miss opener](https://img.mlbstatic.com/mlb-photos/image/upload/d_people:generic:headshot:67:current.png/w_213,q_auto:best/v1/people/668678/headshot/67/current)
Zac Gallen Stats, Fantasy & News
![Diamondbacks' Gallen has sore forearm, might miss opener](https://www.click2houston.com/resizer/30KJfRK82utxD3tE_XQsNONLnHg=/arc-anglerfish-arc2-prod-gmg/public/5C2AY3X33NAT7BPDE6R2UFYE24.jpg)
Diamondbacks' Gallen has sore forearm, might miss opener
![Diamondbacks' Gallen has sore forearm, might miss opener](https://d29m18w01sxjzp.cloudfront.net/source/2018/2021%20MLB%20Draft%20Guide/EloyJ.jpg)
2021 MLB Injury Report