"I was in Columbus yesterday afternoon and found out that I'd been traded over," Langwell said.
The D-backs dealt Kubel to Cleveland last Tuesday, but Langwell did not realize he was the player to be named at that time.
"I wasn't sure," Langwell said. "I had been told at that point [by the Indians] that I wasn't going to be going up in September, so at that point I was kind of hoping to maybe get somewhere and get a fresh start and try to help a team in September."
Langwell found a familiar face in Arizona left-hander Tony Sipp, who played with Langwell in the Cleveland organization.
"I pretty much know he's a control-guy fastball, keeps it down in the zone," D-backs manager Kirk Gibson said. "When he's here, we'll take a look."