Astros left fielder Carlos Lee rejoined the team on Monday afternoon in Cincinnati after staying in Houston to undergo tests after a rib injury. Lee bruised his ribs in the seventh inning of Houston's 5-0 win over Milwaukee on Sunday when teammate Angel Sanchez slid knee-first into his ribs while the two were going for a pop-fly. He was carted off the field and taken to a hospital where he underwent tests. X-rays and a CT scan both came back normal and Lee is listed as day-to-day.