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1. Roy Halladay: 21-10, 219 SO, 2.44 ERA
In his first season with the Phillies, Halladay managed to attain a Cy Young award, win over 20 games, throw a no-hitter in his first career postseason appearance and set a career-high in strikeouts (219). This season, Halladay will become the headline to the best starting rotation on paper since Atlanta's rotation of the early 1990s. Big things are in store for Halladay in 2011.
2. Felix Hernandez: 13-12, 232 SO, 2.27 ERA
Seattle's gem of a pitcher was finally given the respect (and hardware) he's deserved for so long last season, maintaining the lowest ERA and the second-most strikeouts in the major leagues. Although the Mariners aren't going to make much progress this season, Hernandez will continue to dominate on the mound.
3. David Price: 19-6, 188 SO, 2.72 ERA
To be plain, the success of Tampa Bay's starting rotation will be contingent upon Price's ability to throw consistent enough from start to start. Last season was his breakout year, and this season will be vital to the Rays' postseason hopes and dreams.
4. Ubaldo Jimenez: 19-8, 214 SO, 2.88 ERA
Leading the way for most National League pitchers for the majority of the 2010 season, Jimenez continues to make strides in his development and should be considered one of the top five pitcher in all of the major leagues. If he can continue his nearly 3:1 strikeout-to-walk ratio in 2011, he'll contend for the Cy Young award.
5. Josh Johnson: 11-6, 186 SO, 2.30 ERA
Mostly an honorable mention, Johnson didn't have his usually commanding stuff in 2010; and with the lack of run support bestowed upon him, Johnson can never truly flourish with the Marlins. Nevertheless, his impeccable timing and accuracy are second to none in the majors, and he will continue to impose his will on opposing batters year in and year out.