Hunter Brown goes for the Astros and he's the top prospect in the Astros' farm system, rating 71 overall. He faces Martin Perez, who is 10-5 with a 2.89 ERA but has given up 12 runs over his last two starts against the Astros. That's a brand new prospect in his first game going against Perez, who has really struggled against Houston. It's never easy for a first-time starter to go for a team that is comfortably in first place.