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45. SP Justin Masterson, Cleveland Indians
A former top Red Sox prospect, Masterson was shipped to the Indians in the Victor Martinez deal in 2009. He enjoyed a breakout season of sorts in 2011, going 12-10 with a 3.21 ERA, but his ERA spiked to 4.93 last season and he was a major question mark for 2013. He's emerged as the ace of a surprise Indians team this season, though, going 7-2 with a 2.83 ERA and throwing a pair of shutouts already in the early going.
44. RP Joe Nathan, Texas Rangers
Nathan saved 260 games in his seven seasons with the Twins, but his tenure there ended on a low note, as he missed 2010 with Tommy John surgery and then posted a 4.84 ERA in 48 games in his first season back. The Rangers took a chance on him last offseason, signing him to a two-year, $14.5 million deal, and he saved 37 games with a 2.80 ERA for them in 2012. He's still got it at 38, as he's 13-for-13 on saves this season with a 2.12 ERA.
43. SP Yovani Gallardo, Milwaukee Brewers
Over the past four seasons, Gallardo has averaged a 15-10 record, 3.68 ERA and 204 strikeouts in 196 innings. Still just 27, he already has 72 big league wins under his belt and is just now entering the prime of his career. He falls down the list a bit due to his slow start, as he's 3-4 with a 4.50 ERA, but he should turn things around and finish with his usual solid numbers across the board.
42. SP Trevor Cahill, Arizona Diamondbacks
Cahill made a name for himself in 2010, when he went 18-8 with a 2.97 ERA as a 22-year-old in just his second big league season. The Diamondbacks shipped Jarrod Parker, Ryan Cook and Colin Cowgill to the A's to acquire him prior to last season, and he went 13-12 with a 3.78 ERA in his first season in the desert. He's been great so far this year, going 3-5 with a 2.81 ERA and 1.17 WHIP.
41. RP Kenley Jansen, Los Angeles Dodgers
Even with the Dodgers signing of Brandon League, there was little question that Jansen was the best reliever on the team and one of the best in all of baseball. He saved 25 games with a 2.35 ERA and 13.7 K/9 last season, but a heart condition was reason enough for the Dodgers to sign an insurance policy.
For now, he remains in a setup role, though he does have two saves to go along with a 3.63 ERA and 12.5 K/9, as there is no question he has some of the best stuff in all of baseball.