Danny Duffy (elbow) will begin a rehab assignment with Double-A Northwest Arkansas on Sunday.
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He'll throw 60 pitches for the Naturals. Making his way back from Tommy John surgery, Duffy will surely require the full 30 days on his rehab assignment. Assuming the results are there and his arm strength is back, he should be added to the Royals' rotation in late June. The left-hander is worth stashing on the DL if you have the roster space.
Blue Jays transferred LHP J.A. Happ from the 15-day disabled list to the 60-day disabled list.
Happ was hoping to make it back by mid-June, but he now won't be eligible to return until early July. The left-hander is coming back from a small fracture behind his left ear as well as a sprained right knee.