The injury occurred during the team's road trip in Cleveland. However, it first appeared Raburn would be OK, manager Jim Leyland said.
"We thought it was going to be fine," Leyland said. "But it's not."
Despite receiving daily treatment, the injury progressively got worse, resulting in the DL stint.
"He can't grip the bat," head athletic trainer Kevin Rand said. "He first felt it working out. He's been able to kind of work with it a little bit. It's been bothering him off and on, and then it just got gradually sore over the last few days."
The move is retroactive to Aug. 1, meaning Raburn will be eligible to return when the team begins a three-team, nine-game homestand on Aug. 17. Raburn is hitting .172 this season with 12 RBIs. He's started only two games since July 21.
As a result, Danny Worth was recalled from Triple-A Toledo for a team-high fifth time this season. Worth said he got the call late Saturday night, and he was one of the first in the clubhouse early Sunday.
Asked if the constant back and forth gets frustrating, the 26-year-old Worth said, "No. It's just playing. [I'll] take what they give me and keep on trying to improve. Hopefully, I can be up here on a full-time basis in the future some time."
Worth had to quickly settle in, as he started at second base and hit ninth.