Since his breakout season in 2010, some evaluators have been waiting for superstar Jered Weaver (RHP, LAA) to come back down to earth. Instead, the lanky righty has continued to baffle hitters and disappoint critics by posting excellent numbers and he's currently on track to post his second straight sub-3 ERA...

From the moment he arrived in Texas, Yu Darvish (RHP, TEX) brought instant star power and considerable talent to the Rangers starting rotation. Darvish dispatched the competition with relative ease during his first month in the big leagues, but hitters have caught up to him since and the Japanese hurler has been scuffling since the All-Star break.

It wasn't so long ago that there were concerns that Matt Harrison (LHP, TEX) might never reach the point where he could command his pitches effectively enough to stick in the Texas rotation. Harrison has silenced those doubters in the past year and half by harnessing his stuff and posting strong numbers, to the point that he was named to the AL All-Star squad last month...

The signing of Rafael Soriano (RHP, NYY) prior to the 2011 season was not a popular move given the depth in the Yankees bullpen at the time. Soriano's struggles during last season did nothing to silence his critics. Cut to this season, where a sudden vacancy in the closer's role has thrust Soriano back into prominence and all he's done is thrive.

Many pitchers continue to try, but the only thing capable of shutting Dustin Pedroia (2B, BOS) down apparently is injury. Pedroia remains one of the AL's top second basemen, but his struggle with a thumb injury this season has cut into his production significantly...

After injuries plagued him throughout 2011, Alex Rodriguez (3B, NYY) took drastic steps to improve his health in preparation for the 2012 season. One trip to see Kobe Bryant's doctor in Germany later, Rodriguez has managed to stay in the lineup consistently, but his spotty production has been the real problem...

In spite of rock solid skills, many wondered how Hiroki Kuroda (RHP, NYY) would fare after leaving the NL West for the rough and tumble AL East. Dodger Stadium is certainly more favorable to pitchers than the harsh confines of new Yankee Stadium, but you'd hardly know it looking at Kuroda's seamless transition into his new surroundings.

Anaheim has assembled one of the premiere starting rotations in baseball and Ervin Santana (RHP, LAA) has been an important part of that collective. Yet after a strong performance in 2011, Santana has struggled with consistency this season and his numbers paint an unsightly picture...

There were many questions about the Red Sox at the outset of the 2012 season and the matter of whether or not Alfredo Aceves (RHP, BOS) could handle the closer's role was prominent among them. Boston still has its share of issues as a franchise, but they have also found their closer...

To this point in his career, Elvis Andrus (SS, TEX) has distinguished himself with his strong speed and defense. Yet in 2012, Andrus is impacting games in Texas at the plate as well. Can Andrus stay hot all summer?

After a career year that finally paired his superior skills with terrific results, James Shields (RHP, TAM) entered 2012 with high expectations. And while he's been effective, Shields hasn't performed as many expected...