The secret to Yankees Single-A affiliate Charleston's power output is as easy as A-B-C: Aune and Breen in the corners.

Rightfielder Austin Aune and leftfielder Chris Breen both were drafted in 2012 and have progressed through the minors together, providing a lefty-righty slugging tandem as they climb the organizational ladder.

The duo play with the RiverDogs, for whom Aune was 2-for-6 with a double and a home run and Breen went 3-for-5 with two doubles and a home run during a 15-6 win over Asheville on Monday.

Aune, 21, was selected in the second round. The lefthanded hitter struggled making contact during his first three seasons, batting .225 (117-for-520). But Aune always slugged, slamming 38 doubles, six triples and five home runs during those years with the Gulf Coast League Yankees and Staten Island. With Charleston in 2015, however, he's added average to his game. Aune is hitting .281 (47-for-167) with 15 doubles, six triples and five home runs, a .533 slugging percentage.

Breen, 21, was selected in the 12th round. A righthanded hitter, he batted .253 (129-for-509), playing at the same levels as Aune, at the same time. Breen launched 32 doubles, nine triples and 13 home runs from 2012 to 2014. Though he's batting just .243 in 2015, Breen has 11 doubles and six home runs, displaying the characteristic power that's followed him through the minors.

Aune and Breen have totaled 11 of Charleston's 24 home runs (46 percent) and 43 of the team's 153 extra-base hits (28 percent).

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Charleston is 31-33 and in fourth place in the South Atlantic League Southern, four games back of first-place Greenville.

TRIPLE-A SCRANTON/WILKES-BARRE

(37-28, 1st place in International League North)

The RailRiders were off.

DOUBLE-A TRENTON

Yankees videos

(35-28, 2nd place in Eastern League Eastern, 0.5 games back)

The Thunder were off.

SINGLE-A ADVANCED TAMPA

(30-34, 3rd place in Florida State League North, 7 games back)

Leftfielder Ericson Leonora homered, but the Yankees lost to Bradenton, 3-2.

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ROOKIE - DOMINICAN SUMMER LEAGUE YANKEES 1

(9-5, 2nd place in DSL Boca Chica South, 0.5 games back)

Centerfielder Estevan Florial was 3-for-5 with a home run and third baseman Nelson Gomez went 2-for-5 with a home run, but the Yankees fell to the DSL Giants, 13-7. Shortstop Ricardo Ferreira was 3-for-5 with a triple.

ROOKIE - DOMINICAN SUMMER LEAGUE YANKEES 2

(6-8, T-9th place in DSL Boca Chica North, 4 games back)

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Righthander Rafael Lara struck out five in five innings, allowing three hits and three runs (two earned), and third baseman Griffin Garabito and rightfielder Juan De Leon each homered, but the DSL Tigers beat the Yankees, 17-5.