Astros first base prospect Jonathan Singleton went 1-for-4 with two strikeouts on Wednesday, lowering his season line to .293/.398/.646 for Triple-A Oklahoma City. After the game on April 19, Singleton's season line sat at .343/.429/.776, but he has hit just .188/.341/.375 in the intervening games. He has 31 strikeouts in 118 plate appearances, and needs to improve on his pitch selection and decrease his swing-and-miss tendencies, or else he could get carved up in a fashion similar to former teammate George Springer. Singleton is still on track for a call-up before Independence Day.