"That's a guy that has great stuff," Castillo said. "I saw him pitch before. He's got an electric fastball, a really good change and a slider. This is a guy who's going to go right at them. He's one of those guys [who says], 'Hey, you're going to hit me, or I'm going to get you out.' That's the type of stuff that he has. His mound presence, too. I like him."