He gathered his belongings from the visitor's clubhouse and accepted a Diamondbacks offer to give him a ride in the bullpen cart to his new home.
Diekman, 31, has posted a 3.69 ERA with 48 strikeouts and 23 walks in 39 innings for the Rangers this season. It didn't take long for Diekman to show up at his new locker. Arizona made two nice additions to its setup corps on Tuesday, snatching Brad Ziegler from the Marlins and Diekman from Texas.
Ziegler, 38, spent parts of six seasons with the Diamondbacks from 2011 to 2016, posting a 2.49 ERA and 62 saves over that stretch.
The D-backs have acquired three relievers through July trades in Diekman, Ziegler and Matt Andriese. The 24-year-old Huang, who does not go on the 40-man roster, will be assigned to Double-A Frisco of the Texas League. He is 1-5 with a 3.98 ERA and 10 saves in 53 games this season with Miami.More news: Verstappen 'not in the holiday mood' after Hungary retirement
Ziegler recently was named to the Diamondbacks' 20th anniversary team.
The surging Pirates are 3 1/2 games behind Arizona for the final NL wild-card spot, with Atlanta and Colorado also ahead of them in the standings.
Diekman was traded on Monday after pitching against the Diamondbacks and striking out two batters in the ninth inning.