Alburquerque would be returning from the disabled list, not an acquisition. Considering Alburquerque hasn't pitched since last postseason thanks to offseason elbow surgery, though, it feels like an addition.
The Tigers sent Alburquerque to Class A Lakeland on Tuesday to begin a Minor League rehab assignment. He'll likely get his initial outings in with the Flying Tigers while he stretches out his arm, then move up the system to face better competition.
The Tigers can keep him on rehab for up to 30 days. He might not get that full time, but it won't be a short stint at all, given the time he has missed.