The Rangers have taken control of the AL West once again and leapfrogged both the Phillies and Red Sox to take over second place this week. Read more »

The Red Sox still own the Yankees this season, but run differential has allowed New York to remain in the top spot. Read more »

The Yankees are red-hot, having won seven straight, heading into their series against the Red Sox at Fenway Park. Read more »

There figures to be a lot of shifting in these rankings over the next couple of weeks as teams wheel and deal ahead of the trade deadline. Read more »

While our Top 10 remained largely the same, the Rockies jumped up three spots and the Nationals dropped five slots. Read more »

The Blue Jays made the biggest jump this week, moving up six spots to 12th. Read more »

One of the growing events on the Major League calendar is the Futures Game the Sunday before the All-Star game in featuring some of the top young talent in the minor leagues. This year in Arizona was no different, especially on the mound. See who were the top standouts as future stars. Read more »

The Pirates made a huge jump in our rankings as they remain in the National League playoff race. Read more »

The Yankees are in the top spot for the second time this season after rebounding from a sweep at the hands of the Red Sox to win six of their last seven games. Read more »

The Cardinals are back in first place, but the Red Sox were the story this week. They rank seventh, marking their highest ranking of 2011. Read more »

The Yankees have overtaken the Cardinals for first place, marking the first time St. Louis hasn't held the top spot this season. Read more »

The Red Sox jumped from 18th to 9th in our rankings after an incredible week that saw them average eight runs and allow just three runs per game. Read more »

The A's, Blue Jays, Brewers and Diamondbacks made the biggest jumps in this week's rankings, while the Phillies, Angels, Padres, Royals all slid. Read more »

The Rays continue to skyrocket up our rankings thanks to 22 wins in their last 31 games. Read more »

The Cardinals top our rankings for the second-straight week, with the Indians, Angels, Phillies and Yankees rounding out the top five. Read more »

The Cardinals are at the top of the first rankings for the 2011 season, leading the second-place Yankees by a significant margin. Read more »

Need a crash course to draft your fantasy baseball team? We bring you completely up to speed with a position-by-position cheat sheet using a tier system. Read more »

Somewhat shockingly, the Giants finished ranked first in Opsera for the 2010 season, ahead of the Braves, Yankees and Phillies. Read more »

While the Yankees and Twins are almost certain to reach the playoffs, teams ranked third through 10 are all fighting for their October lives. Read more »

The Cardinals hold a narrow lead over the Yankees, Braves, Twins and Giants. Read more »