Major League Baseball Power Rankings

The St. Louis Cardinals remain perched on top of this week's MLB Power Rankings, but 40-year-old Bartolo Colon has the Oakland Athletics making a charge up the standings.

Veteran righty Bartolo Colon has Athletics climbing

Oakland Athletics starting pitcher Bartolo Colon, left, is off to a superb start this season to the tune of a 7-2 record with a 3.14 earned-run average. (Marcio Jose Sanchez/Associated Press)