* The Colorado Rockies are bringing up a new pitcher named Eiberson Castellano to play in their big league games. He's been doing really well in the smaller leagues, so the team thinks he can help them win more games.
* Castellano has a bunch of different pitches he can throw, like fastballs and sliders, and he throws them pretty hard! The Rockies hope he can make their pitching even better, especially since they've had some trouble with it lately.
* Even though he's good, Castellano sometimes throws too many balls instead of strikes, which is something he'll need to work on. But the Rockies are taking a chance on him because they believe he has the talent to be a great pitcher for them.