The Cedar Rapids Kernels and Minnesota Twins announced Monday that pitcher Luke Westphal has been promoted to Fort Myers, infielder Sean Miller has been placed on the 7-day Disabled List with a thumb injury and infielder T.J. White has rejoined the Kernels from Fort Myers.

Westphal pitched in seven games (six starts) for the Kernels this season, posting a 1-2 record and 2.70 ERA. The Twins signed him as a non-drafted free agent Jan. 31.

Miller has played in 13 games for the Kernels, batting .318 with a double and two RBIs. He was selected by the Twins in the 10th round of the 2015 draft from the University of South Carolina-Aiken.

White was assigned to Fort Myers on July 10 and played in 20 games, batting .171 with a double and two RBIs. He played in 74 games for the Kernels earlier this season, batting .230 with 10 doubles, five triples  and 26 RBIs. He was selected by the Twins in the 18th round of the 2014 draft from UNLV.