![Astros: 4 prospects Houston must promote to roster amid September call-ups](https://media.nbclosangeles.com/2023/09/25471484044-1080pnbcstations.jpg?quality=85&strip=all)
MLB prospects who got the call up September 1 – NBC Los Angeles
![Astros: 4 prospects Houston must promote to roster amid September call-ups](https://www.si.com/.image/ar_1:1%2Cc_fill%2Ccs_srgb%2Cfl_progressive%2Cq_auto:good%2Cw_1200/MTY4MTk2OTMyODAzNDM4NDY1/wilmerflores_050814_blogcutjpg.jpg)
Mets promoting long-touted prospect Wilmer Flores to play
![Astros: 4 prospects Houston must promote to roster amid September call-ups](https://www.dailyherald.com/storyimage/DA/20230514/SPORTS/230519626/AR/0/AR-230519626.jpg&updated=202305141700&imageversion=Facebook&exactH=630&exactW=1200&exactfit=crop&noborder)
Astros hold off White Sox 4-3
![Astros: 4 prospects Houston must promote to roster amid September call-ups](https://i.guim.co.uk/img/media/45c9a38f9a9d63cb30a04c111a5c933036a81546/0_71_4518_2712/4518.jpg?width=1200&height=630&quality=85&auto=format&fit=crop&overlay-align=bottom%2Cleft&overlay-width=100p&overlay-base64=L2ltZy9zdGF0aWMvb3ZlcmxheXMvdGctZGVmYXVsdC5wbmc&s=4038d96c354ffcd9820915f949c63548)
Kris Bryant's belated call-up to Chicago Cubs exposes flaw in MLB
![Astros: 4 prospects Houston must promote to roster amid September call-ups](https://s.hdnux.com/photos/01/13/10/42/19695802/10/rawImage.jpg)
Astros preview: From 0 to 60
![Astros: 4 prospects Houston must promote to roster amid September call-ups](https://img.mlbstatic.com/mlb-images/image/upload/t_16x9/t_w1024/mlb/wlhbrbc8cpycjuukotju)
Astros stunned late in series opener against Orioles
![Astros: 4 prospects Houston must promote to roster amid September call-ups](https://www.denverpost.com/wp-content/uploads/2023/09/GettyImages-1239848113x.jpg?w=527)
What is Rockie Way? After decades of mediocrity, Colorado searches
![Astros: 4 prospects Houston must promote to roster amid September call-ups](https://img.bleacherreport.net/img/slides/photos/004/175/655/hi-res-5bb32e6a106e8a6818a578fae653bded_crop_exact.jpg?w=2975&h=2048&q=85)
Ranking the Top 25 MLB Prospects Likely to Be Promoted This
![Astros: 4 prospects Houston must promote to roster amid September call-ups](https://theathletic-media-production.s3-us-west-2.amazonaws.com/EDha1ECkjVEV_PNjt0rV3XVJL_1440x965.jpg)
Verlander rolls through top of Rangers lineup - The Athletic