MLB Power Rankings 2015: Week 9 Detroit Tigers continue to fall

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May 31, 2015; Houston, TX, USA; Houston Astros designated hitter Evan Gattis (11) hits a single against the Chicago White Sox in the ninth inning at Minute Maid Park. Chicago won 6 to 0. Mandatory Credit: Thomas B. Shea-USA TODAY Sports

5. Houston Astros (31-20)

Seven weeks and counting in first place.