The Padres' first-round (42nd overall) Draft choice in 2008, Decker, 21, hit .236 at Double-A San Antonio in 2011 with 19 home runs and 92 RBIs. He is a career .273 hitter over four Minor League seasons.
Decker's Javelina home games are played at Peoria Stadium in the shadow of his prep alma mater, Sunrise Mountain High School in Peoria, Ariz.
Adcock: The 6-5, 220-pound Adcock, a native of Elizabethtown, Ky., posted a dominant outing in his first Fall League start last week, striking out a league single-game best seven batters over three innings to earn the win. He allowed only one hit and walked one batter.
Originally drafted in the fifth round (141st overall) in 2006 by Seattle, Adcock, 23, was selected by Kansas City from Pittsburgh in the Rule 5 Draft last December. He spent 2011 with the Royals, appearing in 24 games. He was 1-1 with a 4.62 ERA in 60 1/3 innings pitched.
Other nominees: Salt River IF Nolan Arenado (COL), Mesa RHP Chris Carpenter (CHC), Salt River OF Alex Castellanos (LAD), Mesa RHP Cole DeVries (MIN), Salt River OF Adam Eaton (ARI), Peoria IF Jedd Gyorko (SD), Mesa IF Junior Lake (CHC) and Peoria RHP Forrest Snow (SEA) also were nominated.
Arizona Fall League: Known throughout professional baseball as a finishing school for Major League Baseball's elite prospects, the Arizona Fall League is a six-team league owned and operated by MLB. It plays six days per week (Monday-Saturday) at six spring-training stadiums in the Phoenix metropolitan area. Salt River Fields at Talking Stick (Salt River Rafters) is the league's newest venue, joining five returning sites: Mesa HoHoKam Stadium (Mesa Solar Sox), Peoria Sports complex (Peoria Javelinas), Phoenix Municipal Stadium (Phoenix Desert Dogs), Scottsdale Stadium (Scottsdale Scorpions) and Surprise Stadium (Surprise Saguaros).
This year's schedule features the sixth annual Rising Stars Game on Saturday, Nov. 5 at Surprise Stadium and the annual championship game on Saturday, Nov. 19 at Scottsdale Stadium. The Scottsdale Scorpions are the defending champions.