Barnum -- the 48th overall selection earlier this month -- isn't wasting any time showing the Minor Leagues just how powerful his bat can be.
The White Sox prospect homered in his third straight game Friday night, going 3-for-5 with a pair of RBIs in Rookie-level Bristol's 9-8 loss to Danville.
All three of the left-handed hitter's longballs have gone to the right field at Bristol's DeVault Memorial Stadium. Patrick Leonard of the Burlington Royals, who also has three homers in four games, is the only other player in the Appalachian League with more than one roundtripper.
Barnum, who stands 6-foot-5 and weighs 225 pounds, was compared by some to Ryan Howard and Fred McGriff. He batted .417 and tied a school record with six homers for King High School in Tampa, Fla., last spring after notching a school-best .491 average as a junior.
Barnum, who had committed to play at the University of Miami, got a $950,000 signing bonus from the White Sox, below the $1,052,500 slotted for the 48th pick.
Jose Barraza finished a homer shy of the cycle, went 3-for-4 and scored twice for Bristol. It was the catcher's second game since the White Sox selected him in the seventh round of the Draft. Third-rounder Joey DeMichele tripled twice, drove in two runs and scored once out of the leadoff spot.
Danville trailed, 8-2, before scoring seven times over the final three innings. Edinson Sanchez and Levi Hyams both homered and combined for five RBIs for the Braves.