They've been ahead in the standings for a while -- now the Arizona Diamondbacks have at last leapfrogged the Los Angeles Dodgers in our MLB Power Rankings.
That's only part of a wild week for the National League West, though, which sends a third team into our top 10 -- the red-hot San Francisco Giants.
At the top the our list, the Tampa Bay Rays hold fast at No. 1, but the Atlanta Braves are hot on their heels, passing the Texas Rangers to take over the second spot.