Wang was promoted by the Brewers on Friday.
Wang rejoins the Brewers after spending most of this season with Triple-A Colorado Springs. During 47 games with the Sky Sox, Wang posted a 2.05 ERA and 1.21 WHIP over 57 innings of action. He made one appearance with the Brewers in late July, and figures to serve in low-leverage situations out of the bullpen as long as he's with the team.