Castillo was promoted to the major leagues from Triple-A Durham on Tuesday, Marc Topkin of the Tampa Bay Times reports.

EDGE Analysis

Castillo has appeared in 19 games for Triple-A this season, posting a stellar 1.03 ERA and 0.84 WHIP with a 32:7 K:BB across 26.1 innings. The move was made after Chris Archer (groin) was placed on the 10-day disabled list.