Rotowire: Dec 19 / 7:36a ET
News: Peterson was one of four prospects traded to the Braves on Friday in the deal sending Justin Upton to the Padres, ESPN's Jim Bowden reports.
Impact: Peterson saw his first call-up to the big leagues last June as a fill-in for the injured Jedd Gyorko, but faltered miserably. He slashed an anemic .113/.161/.133 across 58 plate appearances, showcasing little of the blend of contact, on-base, and stolen-base skills that allowed his star to rise in the minors. He'll turn 25 in May, so time may be running out for Peterson to prove he can cut it in the majors. It's likely that he will open the upcoming season at Triple-A Gwinnett, but if Alberto Callaspo or top infield prospect Jose Peraza falters as the starter at second base for the Braves, Peterson could get a look. In addition to Peterson, lefty starter Max Fried, third baseman Dustin Peterson and outfielder Mallex Smith will also be included in the prospect haul for Atlanta.