In his first plate appearance of spring training, a big league camp AB versus David Phelps, Gregory Polanco turned on a breaking pitch, sending it over the right field wall. Such things happen to 22-year-olds during spring training, and most of the time, they’re anomalies. In Polanco’s case, however, that moment, in retrospect, seems profound — a statement as to his readiness to produce at the highest level from the instant he stepped on a diamond this spring. Reassigned to Triple-A to begin the season, Polanco’s statements have only grown louder. Through 92 PA, he’s hitting .417/.467/.679 with 4 HR and 4 SB, making him the best mixed league stash in the minors. The Bucs have been fortunate thus far to squeeze some production out of their Travis Snyder/Jose Tabata platoon, but the upside with Polanco is unquestionably higher and it’s only a matter of time before Pittsburgh slots him into their lineup as the everyday RF. His incredible start at Indianapolis should allow him to segue into big league ball with a shizzload of confidence.

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I told you last week about the implications of Xander Bogaerts’s Triple-A promotion. This week, we celebrate another Triple-A promotion, as the Mariners have bumped Taijuan Walker from Double-A Jackson to Tacoma. Walker has everything you look for in a pitching prospect — size, stuff, athleticism… the works. He’s as elite as they come. After an up-and-down 2012 at Jackson, the 20-year-old returned to Double-A in 2013, performing with much greater consistency this time through. Walker cranked it up a notch in June, though, posting a 33/3 K/BB in 25 IP this month. He’s only 20, and it’s probably a little premature to wonder about a 2013 arrival considering the M’s have arms like Erasmo Ramirez and Danny Hultzen waiting for an opportunity, but Walker’s ceiling is the best of the bunch. By far. Now that he’s just one stop from the bigs, he needs to be on your fantasy radar.

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With the constant influx of new talent, new names, new statistics, it can be easy to lose sight of a prospect who’s fallen from grace. A little more than a year ago, in their 2012 Prospect Handbook, Baseball America ranked Joe Benson as the #2 overall prospect in the Twins organization. Benson was coming off a 2011 in which he hit .285/.388/.495 with 16 homers at Double-A New Britain, finishing the year with a call-up to the big club and a spot on the 40-man. He was on the fantasy radar before injuries delayed his 2012 debut, but he hasn’t been relevant since then. Across four levels in 2012, the former 2nd round draft pick managed a line at .202/.288/.336. And after watching him hit .192/.256/.285 through 43 games at Triple-A Rochester this season, the Twins had seen enough and released Benson to make room for P.J. Walters. The Rangers claimed him have assigned him to Double-A. At 25 years old, there’s still a glimmer of hope for the toolsy outfielder, but that will fade quickly if the horrendous hitting continues.

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