Biscuits outfielder John Shelby has been promoted to Triple-A Durham and Charlotte's Brett Nommensen is moving up to Montgomery.
Nommensen was hitting .282 with 48 runs scored and 43 RBIs for the Stone Crabs. He was 20-for-25 on steals. The third-year pro was an eighth-round draft pick in 2009.
Shelby had a .259 average and 12 home runs in 89 games with the Biscuits. Picked up in a trade from the White Sox near the end of spring training, Shelby will be making his Triple-A debut.