Arrighetti (foot) received an injection Monday and could be cleared to start a throwing program within the next few days, Matt Kawahara of the Houston Chronicle reports.
Arrighetti was placed on the 15-day injured list Saturday after being diagnosed with right foot nerve irritation. A timeline for his return to the bump remains up in the air, and while it's promising news that he could gain clearance to throw later in the week, it will ultimately depend on how his foot responds to the injection.