Huang's contract was selected from Double-A Frisco on Wednesday, Levi Weaver of The Athletic reports.
Huang has a 2.08 ERA with 14 strikeouts in 8.2 innings this year for Frisco. The corresponding move will send Drew Smyly (arm) to the 10-day injured list, opening up his scheduled start on Wednesday. The Wednesday starter will likely come from the bullpen, and Huang could help as well in the middle innings.