The White Sox acquired Hoopii-Tuionetoa from the Rangers on Wednesday in exchange for outfielder/designated hitter Robbie Grossman.
Hoopii-Tuionetoa has allowed just one unearned run with a 16:4 K:BB over 12.1 innings with Double-A Frisco this season. The 23-year-old will presumably stick at the Double-A level with his new organization and report to Birmingham.