Tillman's second rehab start with Double-A Bowie went off without a hitch Saturday, and he will make what's expected to be his final rehab outing Thursday for High-A Frederick, Roch Kubatko of MASN Sports reports.
An MRI of Britton's forearm and elbow showed no damage, Rich Dubroff of PressBoxonline.com reports.
"Looked good. They did everything. Elbow looked really good. That bodes well obviously down the road. They found what they thought they would find," manager Buck Showalter said.