Miller's contract was selected from Triple-A Indianapolis on Wednesday.

EDGE Analysis

Miller made three relief appearances for the Cubs in April and allowed seven runs in two innings. He's performed better in the minors with a 2.96 ERA and 0.95 WHIP in 24.1 innings across 13 appearances (four starts), and he'll pitch exclusively out of the bullpen for the Pirates, Jake Crouse of MLB.com reports.