By Steve Batterson DAVENPORT, Iowa – On the run all day Tuesday because of flight issues, Jonathan Singleton didn’t stop until he rounded the bases after his first at-bat of the 2013 season. The Houston Astros first-base prospect drove a towering two-run homer to left-center for the Quad-Cities River Bandits in the opening inning of a rain-shortened 7-5 Midwest League victory over Kane County which was called midway through the sixth inning. “The adrenalin was running pretty good in that first at-bat,” Singleton said. “I didn’t get much sleep last night. I was anxious. It was good to finally get out there under the lights. It’s time to go to [...]