Peterson will be joined at the All-Star Futures Game by outfielder Gabby Guerrero, another one of the Mariners top young prospects. Guerrero will play on the World Team at the July 13 game at Target Field in Minneapolis as part of the All-Star Week festivities.
Guerrero, a 20-year-old outfielder from the Dominican Republic, has hit .313 with 16 doubles, eight home runs, 12 stolen bases and 50 RBIs in 71 games for High Desert. He is the nephew of former MLB All-Star outfielder Vladimir Guerrero and is in his third season in the Mariners' organization after signing as a non-drafted free agent in 2011.
The Mariners have had 31 selections to the Futures Game since its first began in 1999. Seven players on the current 25-man roster and disabled list played in the Futures Game in the past: John Buck (2002), Robinson Cano (2003-04), Corey Hart ('02), Felix Hernandez ('04), Logan Morrison ('10), James Paxton ('11) and Michael Saunders ('07).
Brad Miller was selected to the 2013 U.S. Team, but he was unable to play due to his promotion to the Major League squad. Buck, Cano, Hart and Hernandez are among 115 Major League players who have competed in both the Futures Game and the MLB All-Star Game.
The Futures Game, which is now in its 16th year, features the top Minor League prospects competing in a nine-inning contest as part of Taco Bell All-Star Sunday. The U.S. Team, which has won each of the last four contests, leads the all-time series, 9-6. The game will begin at 2 p.m. PT and can be viewed live on MLB.com and MLB Network.
Greg Johns is a reporter for MLB.com. Follow him on Twitter @GregJohnsMLB as well as his Mariners Musings blog. This story was not subject to the approval of Major League Baseball or its clubs.